A283663 Number of nX5 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

0, 4, 5432, 165152, 2674500, 34315385, 387076338, 4014050010, 39317379331, 369759902284, 3371682115858, 30015060742182, 262083811917932, 2252442792021342, 19103118198446027, 160198738920887621

Offset

1,2

Comments

Column 5 of A283666.

Links

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

Example

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

Crossrefs

Cf. A283666.

Sequence in context: A203036 A306962 A102205 * A046360 A367942 A079232

Adjacent sequences: A283660 A283661 A283662 * A283664 A283665 A283666

Keyword

nonn

Author

R. H. Hardin, Mar 13 2017

Status

approved