A251979 Number of (n+2) X (4+2) 0..3 arrays with every 3 X 3 subblock row and column sum not 0 1 2 7 8 or 9 and every diagonal and antidiagonal sum 0 1 2 7 8 or 9.

138390, 2703512, 26230040, 153525420, 1175144274, 11222619848, 98312125934, 803257677008, 6700124781216, 57248679159724, 486477779815126, 4101737620836366, 34626585291394000, 293065570188616222

Offset

1,1

Comments

Column 4 of A251983.

Links

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

Example

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

Crossrefs

Cf. A251983.

Sequence in context: A025311 A081429 A236662 * A224586 A230032 A190386

Adjacent sequences: A251976 A251977 A251978 * A251980 A251981 A251982

Keyword

nonn

Author

R. H. Hardin, Dec 12 2014

Status

approved