A135905 Column 3 of triangle A135902.

1, 4, 24, 186, 1736, 18754, 228658, 3092316, 45802294, 735881882, 12727541778, 235515880084, 4638914346322, 96840935881898, 2134717733185118, 49529467079270060, 1206148832249659798, 30751284267472226682

Offset

0,2

Links

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

Crossrefs

Cf. A135902; A135903, A135904.

Sequence in context: A300736 A226738 A271215 * A239296 A028498 A001397

Adjacent sequences: A135902 A135903 A135904 * A135906 A135907 A135908

Keyword

nonn

Author

Paul D. Hanna, Dec 18 2007

Status

approved