A301496 Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

13, 6, 156, 1576, 21787, 268802, 3243936, 39741611, 487928765, 5990285350, 73509953021, 902263598864, 11075142387448, 135948000511051, 1668765875414321, 20484231805522465, 251446083838676603

Offset

1,1

Comments

Column 6 of A301498.

Links

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

Example

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

Crossrefs

Cf. A301498.

Sequence in context: A300942 A160247 A300886 * A078438 A225954 A133723

Adjacent sequences: A301493 A301494 A301495 * A301497 A301498 A301499

Keyword

nonn

Author

R. H. Hardin, Mar 22 2018

Status

approved