'seq' at a BSD-like OS?

[Soo-Hyun Choi]

Hi,

If I'm at a Linux machine, I can use 'seq'. (Okay, everyone knows it.)
But when I'm at a BSD-like OS, I can't find 'seq' from the coreutils.

Does anybody know how I install it over FreeBSD or Mac OS X?

Thanks,
Soo-Hyun