A252604 Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 1 2 or 5

39372, 136336, 769153, 5243537, 39981376, 316795305, 2541062469, 20524278619, 166610320583, 1355378246529, 11033135273040, 89856208478147, 732098226864789, 5965881702322493, 48619658915446280, 396244917821465932

Offset

1,1

Comments

Column 7 of A252605

Links

R. H. Hardin, Table of n, a(n) for n = 1..150

Example

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

Crossrefs

Sequence in context: A253940 A183833 A203875 * A340062 A031823 A205035

Adjacent sequences: A252601 A252602 A252603 * A252605 A252606 A252607

Keyword

nonn

Author

R. H. Hardin, Dec 19 2014

Status

approved