A252625 Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 1 3 6 or 8

81098, 585774, 8098018, 118551272, 1793890764, 27201457322, 412945739530, 6275667755428, 95419825718602, 1450304432983900, 22045371288141516, 335110120307976884, 5094055063152273398, 77434509354310263684

Offset

1,1

Comments

Column 3 of A252628

Links

R. H. Hardin, Table of n, a(n) for n = 1..199

Example

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

Crossrefs

Sequence in context: A157664 A218106 A064001 * A233994 A237942 A274033

Adjacent sequences: A252622 A252623 A252624 * A252626 A252627 A252628

Keyword

nonn

Author

R. H. Hardin, Dec 19 2014

Status

approved