A303201 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 42, 122, 497, 1751, 8250, 34801, 138014, 547379, 2363422, 9950923, 40646071, 165726180, 698032757, 2923119363, 12072924913, 49765448651, 207852058476, 867405410380, 3597782646113, 14902213961792, 62057837398724

Offset

1,1

Comments

Row 6 of A303197.

Links

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

Example

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

Crossrefs

Cf. A303197.

Sequence in context: A104390 A302639 A302431 * A302314 A303044 A302881

Adjacent sequences: A303198 A303199 A303200 * A303202 A303203 A303204

Keyword

nonn

Author

R. H. Hardin, Apr 19 2018

Status

approved