Duplicate of A003104.
1, 1, 2, 4, 10, 24, 67, 182, 520, 1474, 4248, 1219
1 seqfan posts
Mon Nov 22 16:21:28 CET 2010 [seqfan] Re: Handling duplicate sequences
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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