A216717 Duplicate of A174072.

1, 2, 6, 24, 114, 674, 4714, 37754, 340404, 3412176, 37631268

Offset

1,2

Links

Table of n, a(n) for n=1..11.

Crossrefs

Duplicate of A174072.

Sequence in context: A189846 A189283 A177522 * A174072 A224255 A326348

Adjacent sequences: A216714 A216715 A216716 * A216718 A216719 A216720

Keyword

dead

Author

N. J. A. Sloane, Sep 15 2012

Status

approved