A207515 Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically

2, 16, 98, 1307, 29622, 1048423, 54373655, 4964342828, 715483286848, 161734351034666, 59741686819322041, 35917251659399987384, 34508253720326500890077, 53717705561862882229716065

Offset

1,1

Comments

Diagonal of A207519

Links

R. H. Hardin, Table of n, a(n) for n = 1..16

Example

Some solutions for n=4
..1..0..0..0....1..1..0..1....0..0..0..0....0..1..1..0....0..1..1..0
..1..1..0..1....1..1..0..1....1..1..1..0....1..1..0..0....0..1..1..1
..0..1..1..1....0..1..1..0....1..1..1..0....1..0..0..0....1..0..1..1
..0..1..1..0....0..1..1..0....1..1..0..1....0..0..0..0....1..0..1..1

Crossrefs

Sequence in context: A207934 A207780 A207461 * A207913 A208694 A319603

Adjacent sequences: A207512 A207513 A207514 * A207516 A207517 A207518

Keyword

nonn

Author

R. H. Hardin Feb 18 2012

Status

approved