A161137 Main diagonal of the triangular array A161135.

1, 2, 5, 9, 37, 86, 232, 748, 932, 2865, 17761, 109780, 249840, 1190787, 3869645, 6479631, 69445201, 75334942

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Formula

a(m) = A161135(m,m)

Crossrefs

A161135, A161136, A161138

Sequence in context: A359386 A151952 A090291 * A229551 A247550 A249583

Adjacent sequences: A161134 A161135 A161136 * A161138 A161139 A161140

Keyword

more,nonn

Author

Max Alekseyev, Jun 02 2009

Status

approved