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 <=50.
A195889
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 <=50.
Terms
- a(0) =1a(1) =1a(2) =11a(3) =671a(4) =241221a(5) =584257875
External references
- oeis: A195889