A032335 Shifts left 2 places under "CHJ" (necklace, identity, labeled) transform.

1, 1, 1, 1, 4, 17, 129, 866, 9075, 88698, 1112175, 14313330, 220011636, 3431683284, 62269608609, 1163234669730, 24101988742305, 523745594548440, 12344106261015651, 303786221723300928

Offset

1,5

Links

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

Crossrefs

Sequence in context: A071138 A337521 A032325 * A208803 A156076 A041026

Adjacent sequences: A032332 A032333 A032334 * A032336 A032337 A032338

Keyword

nonn,eigen

Author

Christian G. Bower

Status

approved