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A232653
Number of (n+2)X(7+2) 0..1 arrays x(i,j) with every row sum{j*x(i,j), j=1..7+2} equal, and every column sum{i*x(i,j), i=1..n+2} equal, with upper left element zero
0
1, 1, 55, 55, 1, 571, 27453, 70897, 66043, 304485
OFFSET
1,3
COMMENTS
Column 7 of A232654
EXAMPLE
Some solutions for n=4
..0..1..0..1..0..0..1..1..1....0..0..1..1..0..0..0..1..0
..1..1..1..1..1..1..0..0..1....0..1..0..0..0..1..1..0..0
..1..0..1..0..1..1..1..1..0....1..0..0..0..1..0..0..0..1
..1..0..1..0..1..1..1..1..0....1..0..0..0..1..0..0..0..1
..1..1..1..1..1..1..0..0..1....0..1..0..0..0..1..1..0..0
..0..1..0..1..0..0..1..1..1....0..0..1..1..0..0..0..1..0
CROSSREFS
Sequence in context: A236416 A214042 A112892 * A291502 A042511 A020282
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2013
STATUS
approved