A299936 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

8, 3336, 300901, 23924290, 1969988474, 162678451993, 13409569414628, 1105467648686714, 91135851756212849, 7513324410726183355, 619405370308995678261, 51064350110152788803064, 4209792108260040509344452

Offset

1,1

Comments

Column 7 of A299937.

Links

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

Example

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

Crossrefs

Cf. A299937.

Sequence in context: A298279 A299372 A299141 * A299066 A299838 A299727

Adjacent sequences: A299933 A299934 A299935 * A299937 A299938 A299939

Keyword

nonn

Author

R. H. Hardin, Feb 22 2018

Status

approved