Same as A000179 except here a(1) = -1.
1, 1, 0, 1, 2, 13, 80, 579, 4738, 43387, 439792, 4890741, 59216642, 775596313
3 seqfan posts
Sat Mar 20 14:04:19 CET 2010 [seqfan] Re: %N A093086:some confusion(?)
Sat Mar 20 14:04:19 CET 2010 [seqfan] Re: %N A093086:some confusion(?)
Sat Mar 20 12:47:27 CET 2010 [seqfan] Re: %N A093086:some confusion(?)
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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