Number of aperiodic binary strings of length n; also number of binary sequences with primitive period n.
0, 2, 2, 6, 12, 30, 54, 126, 240, 504, 990, 2046, 4020, 8190, 16254, 32730, 65280
2 seqfan posts
Mon Jan 2 00:24:39 CET 2012 [seqfan] Re: A045655