A127056 Diagonal of table A127054.

1, 2, 9, 65, 719, 9258, 133147, 2477468, 48452299, 1000726573, 21842234124, 581937143077, 15852410442671, 445324580169954, 12948991063890911, 390296042740795497, 13861395944764722457, 498320813544545374474

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Crossrefs

Cf. A127054, A127055.

Sequence in context: A292976 A334315 A334263 * A228696 A042255 A152213

Adjacent sequences: A127053 A127054 A127055 * A127057 A127058 A127059

Keyword

nonn

Author

Paul D. Hanna, Jan 04 2007

Status

approved