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A032333 Shifts left under "CHJ" (necklace, identity, labeled) transform. 0
1, 1, 1, 4, 20, 160, 1240, 13560, 149900, 2011940, 28865620, 475287860, 8289874060, 161736893240, 3350194920540, 75447930411100, 1807230749404340, 46377810638160560, 1258317734014917940 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..19.

CROSSREFS

Sequence in context: A058381 A094651 A065526 * A068965 A185672 A210438

Adjacent sequences:  A032330 A032331 A032332 * A032334 A032335 A032336

KEYWORD

nonn,eigen

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified October 18 18:10 EDT 2018. Contains 316323 sequences. (Running on oeis4.)