A298831 Number of nX5 0..1 arrays with every element equal to 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

0, 48, 10, 141, 1590, 3282, 27915, 246700, 1055145, 7129209, 56638725, 310179586, 2031847146, 14612093372, 88989021585, 580066345101, 3961760881902, 25211203481003, 164396604060820, 1096627513193338, 7101386707723193

Offset

1,2

Comments

Column 5 of A298834.

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..0..1..1..1. .0..0..1..0..1. .0..0..1..1..0
..0..0..1..1..1. .0..0..1..1..1. .1..1..1..1..0. .1..1..1..1..0
..0..0..1..1..1. .0..0..1..1..1. .0..0..0..1..1. .0..0..0..1..1
..1..0..0..0..0. .0..0..1..1..1. .0..0..0..1..1. .0..0..0..1..0
..0..1..0..1..1. .0..0..1..1..1. .0..0..0..1..1. .0..0..0..1..0

Crossrefs

Cf. A298834.

Sequence in context: A069012 A115927 A298619 * A087407 A285660 A299585

Adjacent sequences: A298828 A298829 A298830 * A298832 A298833 A298834

Keyword

nonn

Author

R. H. Hardin, Jan 27 2018

Status

approved