A167279 Square array read by antidiagonals: T(n,m) = number of ways to partition an nXm grid into 2 connected equal-area regions.

0, 1, 1, 0, 2, 0, 1, 3, 3, 1, 0, 4, 0, 4, 0, 1, 5, 19, 19, 5, 1, 0, 6, 0, 70, 0, 6, 0, 1, 7, 85, 245, 245, 85, 7, 1, 0, 8, 0, 856, 0, 856, 0, 8, 0, 1, 9, 355, 2967, 8171, 8171, 2967, 355, 9, 1, 0, 10, 0, 10164, 0, 80518, 0, 10164, 0, 10, 0, 1, 11, 1435, 34463, 277969

Offset

1,5

Links

Table of n, a(n) for n=1..71.

Crossrefs

Sequence in context: A103438 A291556 A323073 * A068920 A363882 A099390

Adjacent sequences: A167276 A167277 A167278 * A167280 A167281 A167282

Keyword

nonn,tabl

Author

R. H. Hardin, Nov 01 2009

Status

approved