A232612 Number of (n+1)X(4+1) 0..2 arrays x(i,j) with every row sum{j*x(i,j), j=1..4+1} equal, and every column sum{i*x(i,j), i=1..n+1} equal

9, 23, 93, 713, 1521, 6561, 53539, 912585, 2788563, 18652349, 150984429, 1188137775

Offset

1,1

Comments

Column 4 of A232614

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Sequence in context: A259170 A057453 A282761 * A339439 A266238 A066008

Adjacent sequences: A232609 A232610 A232611 * A232613 A232614 A232615

Keyword

nonn

Author

R. H. Hardin, Nov 26 2013

Status

approved