A299877 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

32, 157, 253, 1974, 11263, 54005, 324797, 1859944, 10716128, 63074571, 368316242, 2168021180, 12794308839, 75376664070, 445176250283, 2631502643330, 15549915122844, 91938532910925, 543783543413507, 3216228090745002

Offset

1,1

Comments

Column 6 of A299879.

Links

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

Example

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

Crossrefs

Cf. A299879.

Sequence in context: A298219 A299348 A299095 * A299013 A299804 A299680

Adjacent sequences: A299874 A299875 A299876 * A299878 A299879 A299880

Keyword

nonn

Author

R. H. Hardin, Feb 21 2018

Status

approved