A252405 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7

4582, 5060, 18377, 63428, 267113, 1068295, 3896844, 16806104, 68150374, 253409613, 1108339723, 4544602468, 17078079134, 75288883908, 310760322629, 1174707449748, 5201551650607, 21547585089641, 81713181388627

Offset

1,1

Comments

Column 6 of A252407

Links

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

Example

Some solutions for n=4
..2..3..2..2..0..2..2..0....0..2..2..3..2..2..3..2....3..1..0..3..1..3..3..1
..3..3..1..3..3..1..3..3....2..3..2..2..3..2..2..3....2..2..3..2..2..3..2..2
..0..2..2..0..2..2..3..2....3..0..1..3..0..1..3..0....3..2..2..3..2..2..3..2
..2..3..2..2..3..2..2..3....3..2..2..3..2..2..3..2....3..1..3..3..1..3..3..1
..3..3..1..3..3..1..3..3....2..3..2..2..3..2..2..3....2..2..0..2..2..3..2..2
..0..2..2..3..2..2..0..2....3..3..1..0..3..1..3..0....3..2..2..3..2..2..3..2

Crossrefs

Sequence in context: A252063 A068756 A252099 * A252580 A230947 A205231

Adjacent sequences: A252402 A252403 A252404 * A252406 A252407 A252408

Keyword

nonn

Author

R. H. Hardin, Dec 17 2014

Status

approved