A276251 Number of 5Xn 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.

41, 576, 1404, 7316, 43662, 234431, 1423062, 8496628, 48688320, 288603590, 1711519279, 9976564722, 58701625833, 346524625690, 2030788320548, 11939927515262, 70303418241786, 412977048554900, 2427488189698431

Offset

1,1

Comments

Row 5 of A276248.

Links

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

Example

Some solutions for n=4
..0..1..2..2. .0..0..1..2. .0..1..1..0. .0..1..1..0. .0..0..1..1
..2..0..1..1. .2..2..0..1. .2..0..1..2. .0..0..2..1. .2..0..0..1
..2..2..0..0. .0..2..2..0. .1..2..0..0. .2..1..0..0. .1..1..2..0
..1..1..2..0. .0..0..1..2. .1..1..2..2. .0..2..1..0. .2..0..1..2
..2..0..1..2. .1..2..0..1. .2..0..0..2. .0..0..2..1. .2..2..0..0

Crossrefs

Cf. A276248.

Sequence in context: A298839 A301399 A241622 * A298627 A078947 A299600

Adjacent sequences: A276248 A276249 A276250 * A276252 A276253 A276254

Keyword

nonn

Author

R. H. Hardin, Aug 25 2016

Status

approved