A270148 Number of nX5 0..7 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling seven exactly once.

10976, 182257536, 1246566350496, 7142783643783792, 37516051668350707200, 187171034679828236009184, 902573001476572975116916416, 4248314734981907920578531052560, 19637758315774291219039490418779040

Offset

1,1

Comments

Column 5 of A270150.

Links

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

Example

Some solutions for n=1
..0..2..4..4..3. .6..0..6..5..2. .6..6..0..7..2. .7..6..5..3..4

Crossrefs

Cf. A270150.

Sequence in context: A251170 A035913 A124668 * A270115 A335082 A104323

Adjacent sequences: A270145 A270146 A270147 * A270149 A270150 A270151

Keyword

nonn

Author

R. H. Hardin, Mar 12 2016

Status

approved