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A036723 G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 2 generated by (1,2)(3,4). 1
1, 1, 2, 8, 30, 135, 622, 3032, 15134, 77506, 403780, 2135588, 11430910, 61815916, 337193808, 1853183376, 10251612034, 57037706410, 318965425380, 1791842232154, 10107161112356, 57221612791015, 325045726349906, 1852055247196164 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Cf. A036717-A036722.

Sequence in context: A150783 A150784 A150785 * A150786 A150787 A150788

Adjacent sequences:  A036720 A036721 A036722 * A036724 A036725 A036726

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 30 04:49 EDT 2021. Contains 346348 sequences. (Running on oeis4.)