Twin directories of bc:

[DIR]  ftp://82.96.64.7/pub/software/editors/uemacs/uemacs.git/objects/bc/
[DIR]  ftp://82.96.64.7/pub/linux/utils/kernel/module-init-tools/devel/module-init-tools.git_old/objects/bc/
[DIR]  ftp://82.96.64.7/pub/linux/kernel/people/jcm/module-init-tools/attic/devel/module-init-tools.git/objects/bc/
[DIR]  ftp://ftp.dit.upm.es/linux/ubuntu-6.06.1/ubuntu-6.06.1/pool/main/b/bc/
[DIR]  ftp://ftp.linux.it/ubuntu/pool/main/b/bc/
[DIR]  ftp://ftp.linux.it/debian/pool/main/b/bc/
[DIR]  ftp://ftp.research.telcordia.com/pub/world/bc/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.3/pub/gnu/bc/
[DIR]  ftp://134.121.1.1/pub/gnu.OLD/bc/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.2/pub/gnu/bc/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.1/pub/gnu/bc/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.0/pub/gnu/bc/
[DIR]  ftp://134.121.1.1/.snapshot/hourly.1/pub/gnu/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Sunsite_Mirror/kernel.org/pub/utils/kernel/module-init-tools/devel/module-init-tools.git_old/objects/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Sunsite_Mirror/kernel.org/pub/kernel/people/jcm/module-init-tools/attic/devel/module-init-tools.git/objects/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-12.1/source/ap/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-current/source/ap/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-11.0/source/ap/bc/
[DIR]  ftp://ftp.eutelia.it/pub/Slackware_Mirror/slackware-12.0/source/ap/bc/
[DIR]  ftp://ftp.cesca.es/mirror2/gnu/Manuals/bc/
[DIR]  ftp://ftp.cesca.es/mirror2/gnu/bc/
[DIR]  ftp://ftp.cesca.es/mirror/debian/pool/main/b/bc/
[DIR]  ftp://ftp.saintjoe.edu/pub/linux/slackware/slackware-current/source/ap/bc/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors3/debian.org/debian/pool/main/b/bc/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors2/ftp.kernel.org/pub/linux/utils/kernel/module-init-tools/devel/module-init-tools.git_old/objects/bc/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors2/ftp.kernel.org/pub/software/editors/uemacs/uemacs.git/objects/bc/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors2/ftp.kernel.org/pub/linux/kernel/people/jcm/module-init-tools/attic/devel/module-init-tools.git/objects/bc/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/gnu/bc/
[DIR]  ftp://ftp.uni-magdeburg.de/pub/mirror/linux/slackware/source/ap/bc/
[DIR]  ftp://ftp.uni-magdeburg.de/pub/mirror/linux/debian/pool/main/b/bc/
[DIR]  ftp://ftp.hpl.hp.com/gatekeeper/pub/cygwin/release/bc/
[DIR]  ftp://aeneas.mit.edu/pub/gnu/bc/
[DIR]  ftp://debian.lcs.mit.edu/pub/linux/utils/kernel/module-init-tools/devel/module-init-tools.git_old/objects/bc/
[DIR]  ftp://debian.lcs.mit.edu/pub/software/editors/uemacs/uemacs.git/objects/bc/
[DIR]  ftp://debian.lcs.mit.edu/pub/linux/kernel/people/jcm/module-init-tools/attic/devel/module-init-tools.git/objects/bc/
[DIR]  ftp://debian.lcs.mit.edu/pub/debian-amd64/debian-amd64/pool/main/b/bc/
[DIR]  ftp://debian.lcs.mit.edu/pub/debian-amd64/debian/pool/main/b/bc/
[DIR]  ftp://199.6.1.164/pub/scm/linux/kernel/git/mason/btrfs-unstable.git/objects/bc/
[DIR]  ftp://199.6.1.164/pub/scm/linux/kernel/git/rafael/suspend-2.6.git/objects/bc/
[DIR]  ftp://199.6.1.164/pub/scm/linux/kernel/git/vegard/gitwatch.git/objects/bc/
[DIR]  ftp://debian.lcs.mit.edu/debian/pool/main/b/bc/
[DIR]  ftp://199.6.1.164/pub/scm/linux/kernel/git/jcm/udev-jcm.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/vegard/gitwatch.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/network/ofono/ofono.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/inaky/wimax-tools.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/ghaskins/vbus/linux-2.6.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ubuntu/pool/main/b/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/sam/okf/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip.git/objects/bc/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ftp.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip.git2/objects/bc/