Half the number of length n integer sequences with sum zero and sum of squares 9800.
A157602
Half the number of length n integer sequences with sum zero and sum of squares 9800.
Terms
- a(0) =1a(1) =9a(2) =378a(3) =39990a(4) =6207435a(5) =649615491a(6) =61839617931
External references
- oeis: A157602