A295250 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 3 1s.

24, 327, 4928, 72745, 1081924, 16064421, 238620900, 3544087017, 52640098668, 781851094097, 11612685209818, 172480876774284, 2561824309264414, 38050266491011674, 565153045441419558, 8394105809782118020

Offset

1,1

Comments

Column 5 of A295253.

Links

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

Example

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

Crossrefs

Cf. A295253.

Sequence in context: A292298 A138453 A004317 * A295649 A188779 A262291

Adjacent sequences: A295247 A295248 A295249 * A295251 A295252 A295253

Keyword

nonn

Author

R. H. Hardin, Nov 18 2017

Status

approved