A303328 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 2, 32, 3, 62, 56, 758, 822, 11950, 15100, 206189, 274746, 3594570, 5041350, 62876030, 92540426, 1101675155, 1699317164, 19329361600, 31206291570, 339589941166, 573084618732, 5973973630963, 10524401883764, 105231506356350

Offset

1,1

Comments

Row 6 of A303325.

Links

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

Example

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

Crossrefs

Cf. A303325.

Sequence in context: A221760 A037932 A285417 * A298921 A070631 A070623

Adjacent sequences: A303325 A303326 A303327 * A303329 A303330 A303331

Keyword

nonn

Author

R. H. Hardin, Apr 21 2018

Status

approved