A302314 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 42, 153, 380, 1271, 5715, 18992, 70289, 276303, 1198933, 4943025, 20296911, 87240442, 391664186, 1720317094, 7452867091, 33062937731, 149393352532, 666995403171, 2953315553655, 13219394330756, 59630333269194

Offset

1,1

Comments

Row 6 of A302309.

Links

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

Example

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

Crossrefs

Cf. A302309.

Sequence in context: A302639 A302431 A303201 * A303044 A302881 A303529

Adjacent sequences: A302311 A302312 A302313 * A302315 A302316 A302317

Keyword

nonn

Author

R. H. Hardin, Apr 05 2018

Status

approved