A286212 Number of n X 4 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1.

0, 62, 684, 10056, 141018, 2053994, 30004158, 443275636, 6591532114, 98620717026, 1483077002788, 22402256622648, 339716751362128, 5169528508115318, 78910865975553660, 1207934007828690708, 18537787151292561428

Offset

1,2

Comments

Column 4 of A286216.

Links

R. H. Hardin, Table of n, a(n) for n = 1..186

Example

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

Crossrefs

Cf. A286216.

Sequence in context: A249531 A069966 A290285 * A196413 A131473 A138408

Adjacent sequences: A286209 A286210 A286211 * A286213 A286214 A286215

Keyword

nonn

Author

R. H. Hardin, May 04 2017

Status

approved