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A032336 Doubles (index 2+) under "CHJ" (necklace, identity, labeled) transform. 0
2, 2, 24, 366, 7980, 212880, 6974520, 267915690, 11862673620, 594440826420, 33270303029040, 2057075448923880, 139254109289895600, 10243988810221846680, 813714967541542706640 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

CROSSREFS

Sequence in context: A127261 A239531 A194130 * A032084 A195967 A120979

Adjacent sequences:  A032333 A032334 A032335 * A032337 A032338 A032339

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 20 02:47 EST 2018. Contains 299357 sequences. (Running on oeis4.)