(5+(-2)^n)/3.
2, 1, 3, 1, 7, 9, 23, 41, 87, 169, 343, 681, 1367, 2729, 5463, 10921, 21847
2 seqfan posts
Sat Dec 5 10:09:05 CET 2009 [seqfan] Re: A001045 General form: k=2^n-k
Sat Dec 5 04:05:23 CET 2009 [seqfan] A001045 General form: k=2^n-k
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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