A299843 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

64, 7181, 175286, 5966905, 209649848, 7216925214, 250915415042, 8769920586285, 306309096924610, 10700124572845331, 373936238556214822, 13068520058247622630, 456719694485916765088, 15961828473698137787106

Offset

1,1

Comments

Column 7 of A299844.

Links

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

Example

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

Crossrefs

Cf. A299844.

Sequence in context: A223198 A281836 A299080 * A299000 A299745 A299667

Adjacent sequences: A299840 A299841 A299842 * A299844 A299845 A299846

Keyword

nonn

Author

R. H. Hardin, Feb 20 2018

Status

approved