Number of lower triangles of a 6X6 integer array with all row and column sums zero and all row and column sums of squares <= 2n^2.
A195894
Number of lower triangles of a 6X6 integer array with all row and column sums zero and all row and column sums of squares <= 2n^2.
Terms
- a(0) =591a(1) =90013a(2) =4857647a(3) =65530899a(4) =584257875a(5) =3204150229a(6) =15120998539a(7) =54574236425a(8) =172034293523a(9) =489664849531
External references
- oeis: A195894