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A032227 Doubles (index 2+) under "DGJ" (bracelet, element, labeled) transform. 0
2, 2, 12, 126, 1800, 33900, 782880, 21244650, 666080520, 23658839400, 939138631200, 41199513686100, 1979493215099400, 103374687069173520, 5830290120994138800, 353179917268637208750 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

CROSSREFS

Sequence in context: A303343 A087220 A032320 * A032069 A003090 A032152

Adjacent sequences:  A032224 A032225 A032226 * A032228 A032229 A032230

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified October 24 01:20 EDT 2018. Contains 316541 sequences. (Running on oeis4.)