A295096 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.

13, 276, 4151, 70982, 1182050, 19730839, 329926211, 5515740725, 92205260806, 1541063984572, 25759534940464, 430584699866692, 7197345587681614, 120305799118958433, 2010947909346600680, 33613611708635276941

Offset

1,1

Comments

Column 7 of A295097.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=5
..0..0..0..0..0..1..1. .0..0..1..0..0..0..0. .0..0..1..1..0..0..0
..0..0..0..0..0..0..0. .0..1..1..0..0..0..0. .0..0..0..0..0..0..0
..0..0..0..0..0..1..1. .0..0..1..0..0..1..1. .0..0..1..1..0..1..0
..0..1..1..0..1..0..0. .0..0..0..1..1..0..0. .0..0..0..0..0..1..0
..0..0..0..1..1..1..0. .1..1..0..0..0..1..1. .0..0..1..1..0..0..0

Crossrefs

Cf. A295097.

Sequence in context: A197306 A196973 A197560 * A295550 A320336 A133284

Adjacent sequences: A295093 A295094 A295095 * A295097 A295098 A295099

Keyword

nonn

Author

R. H. Hardin, Nov 14 2017

Status

approved