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A055214
a(n) = 2n*a(n-1) - 1.
+0
1
1, 1, 3, 17, 135, 1349, 16187, 226617, 3625871, 65265677, 1305313539, 28716897857, 689205548567, 17919344262741, 501741639356747, 15052249180702409, 481671973782477087, 16376847108604220957
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.
AT&T Labs Research
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