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A032335 Shifts left 2 places under "CHJ" (necklace, identity, labeled) transform. 0
1, 1, 1, 1, 4, 17, 129, 866, 9075, 88698, 1112175, 14313330, 220011636, 3431683284, 62269608609, 1163234669730, 24101988742305, 523745594548440, 12344106261015651, 303786221723300928 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..20.

CROSSREFS

Sequence in context: A054927 A071138 A032325 * A208803 A156076 A041026

Adjacent sequences:  A032332 A032333 A032334 * A032336 A032337 A032338

KEYWORD

nonn,eigen

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified January 18 20:57 EST 2019. Contains 319282 sequences. (Running on oeis4.)