A280361 Number of nX6 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors and with new values introduced in order 0 sequentially upwards.

82, 9188, 924579, 97147710, 10144351660, 1061399606602, 111020011111453, 11613529410292966, 1214844953592240427, 127080650055334484381, 13293449766186695244141, 1390580270989675054905421

Offset

1,1

Comments

Column 6 of A280362.

Links

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

Example

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

Crossrefs

Cf. A280362.

Sequence in context: A116142 A054214 A093241 * A280671 A241129 A289330

Adjacent sequences: A280358 A280359 A280360 * A280362 A280363 A280364

Keyword

nonn

Author

R. H. Hardin, Jan 01 2017

Status

approved