Number of binary codes (not necessarily linear) of length n with 3 words.
0, 1, 3, 6, 10, 16, 23, 32, 43, 56, 71, 89, 109, 132, 158, 187, 219, 255, 294, 337, 384
2 seqfan posts
Thu Dec 31 07:02:30 CET 2009 [seqfan] Re: A005646(11)=5236990, and triangle now linked to A039754