A284219 Number of n X 5 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

10, 143, 3214, 85887, 2417194, 69938626, 2058141264, 61304713234, 1842647045686, 55774782577154, 1697707702343462, 51912416104327610, 1593418341131944098, 49066300496202571019, 1515066051729449019246, 46893719654238123775675

Offset

1,1

Comments

Column 5 of A284222.

Links

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

Example

Some solutions for n=4
..0..1..0..1..0. .0..1..1..0..1. .0..0..0..1..0. .0..0..1..0..1
..1..0..0..1..1. .0..1..1..0..0. .1..1..1..1..0. .1..0..0..1..0
..1..0..1..1..0. .1..0..1..1..0. .0..0..1..1..1. .1..0..0..1..0
..1..0..0..1..1. .1..0..0..0..1. .1..0..0..0..0. .1..1..0..1..1

Crossrefs

Cf. A284222.

Sequence in context: A159327 A356468 A276915 * A180914 A268737 A292844

Adjacent sequences: A284216 A284217 A284218 * A284220 A284221 A284222

Keyword

nonn

Author

R. H. Hardin, Mar 23 2017

Status

approved