A299080 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.

64, 7181, 175286, 5966905, 209649724, 7216923643, 250915355467, 8769918141746, 306309018507458, 10700121813906426, 373936136661714476, 13068516356658656411, 456719559953077301270, 15961823564161742473972

Offset

1,1

Comments

Column 7 of A299081.

Links

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

Example

Some solutions for n=3
..0..0..0..1..1..1..1. .0..0..0..0..0..1..1. .0..0..1..1..1..0..1
..0..0..1..0..1..1..0. .1..1..1..1..1..0..1. .1..1..1..1..0..1..1
..1..1..1..1..1..1..1. .0..1..1..0..0..1..0. .0..0..0..0..0..0..1

Crossrefs

Cf. A299081.

Sequence in context: A264075 A223198 A281836 * A299843 A299000 A299745

Adjacent sequences: A299077 A299078 A299079 * A299081 A299082 A299083

Keyword

nonn

Author

R. H. Hardin, Feb 02 2018

Status

approved