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Search: id:A000117
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A000117 Number of even sequences with period 2n (bisection of A000011).
(Formerly M1150 N0438)
+0
3
1, 2, 4, 8, 18, 44, 122, 362, 1162, 3914, 13648, 48734, 176906, 649532, 2405236, 8964800, 33588234, 126390032, 477353376, 1808676326, 6872485104, 26179922024, 99957747388, 382443112538, 1466024067850, 5629516646996, 21651955485304, 83400061453514 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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