A012272 Duplicate of A009789.

0, 0, 2, 6, 22, 100, 308, 1512, 51144, 869472, 12648528, 168624720, 2029008720

Offset

0,3

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A189282 A318974 A012269 * A009789 A012271 A012266

Adjacent sequences: A012269 A012270 A012271 * A012273 A012274 A012275

Keyword

dead

Status

approved