2^floor(n/2).
1, 1, 2, 2, 4, 4, 8, 8, 16, 16, 32, 32, 64, 64, 128, 128, 256, 256, 512, 512, 1024, 1024
2 seqfan posts
Sun Sep 13 18:42:04 CEST 2009 [seqfan] Re: Duplicates
Thu Feb 5 17:23:06 CET 2009 [seqfan] More conjectures on sequence products
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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