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.
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.
Terms
- a(0) =1a(1) =1a(2) =55a(3) =55a(4) =1a(5) =571a(6) =27453a(7) =70897a(8) =66043a(9) =304485
External references
- oeis: A232653