A269193 Number of nX7 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.

8748, 1008804, 194596516, 36068275268, 6648192704604, 1209655310225276, 217602949665911156, 38754403905072091620, 6843294057789444736828, 1199620248489898735000620, 208983050480777152531950868

Offset

1,1

Comments

Column 7 of A269194.

Links

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

Example

Some solutions for n=1
..3..1..2..3..3..2..3. .2..0..1..3..0..1..0. .1..0..2..0..1..3..0

Crossrefs

Cf. A269194.

Sequence in context: A300566 A203377 A183361 * A269142 A269200 A269108

Adjacent sequences: A269190 A269191 A269192 * A269194 A269195 A269196

Keyword

nonn

Author

R. H. Hardin, Feb 20 2016

Status

approved