A278091 Number of nX5 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

0, 27, 351, 6285, 114028, 2066549, 37564017, 682015651, 12386272982, 224933023893, 4084803341700, 74180250866019, 1347117071827258, 24463718780065218, 444262411397312418, 8067828888156669904

Offset

1,2

Comments

Column 5 of A278094.

Links

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

R. H. Hardin, Empirical recurrence of order 86

Formula

Empirical recurrence of order 86 (see link above)

Example

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

Crossrefs

Cf. A278094.

Sequence in context: A022622 A030648 A223278 * A042410 A110207 A223205

Adjacent sequences: A278088 A278089 A278090 * A278092 A278093 A278094

Keyword

nonn

Author

R. H. Hardin, Nov 11 2016

Status

approved