Number of lower triangles of an n X n integer array with all row and column sums zero and all row and column sums of squares <=32.
A195888
Number of lower triangles of an n X n integer array with all row and column sums zero and all row and column sums of squares <=32.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =369a(4) =68551a(5) =65530899a(6) =314737269521
External references
- oeis: A195888