A302327 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 857, 4321, 19734, 110035, 708572, 4521584, 27478634, 165976429, 1025078824, 6409215778, 39928560855, 247686993864, 1538752202127, 9592791182446, 59886297789724, 373803919233981, 2333455078036120, 14577232595716204

Offset

1,1

Comments

Row 6 of A302322.

Links

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

Example

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

Crossrefs

Cf. A302322.

Sequence in context: A302627 A302419 A303186 * A303020 A302824 A303517

Adjacent sequences: A302324 A302325 A302326 * A302328 A302329 A302330

Keyword

nonn

Author

R. H. Hardin, Apr 05 2018

Status

approved