A032336 Doubles (index 2+) under "CHJ" (necklace, identity, labeled) transform.

2, 2, 24, 366, 7980, 212880, 6974520, 267915690, 11862673620, 594440826420, 33270303029040, 2057075448923880, 139254109289895600, 10243988810221846680, 813714967541542706640

Offset

1,1

Links

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

Crossrefs

Sequence in context: A239531 A194130 A356908 * A032084 A306062 A195967

Adjacent sequences: A032333 A032334 A032335 * A032337 A032338 A032339

Keyword

nonn

Author

Christian G. Bower

Status

approved