Half the number of length n integer sequences with sum zero and sum of squares 3042.
A157571
Half the number of length n integer sequences with sum zero and sum of squares 3042.
Terms
- a(0) =1a(1) =9a(2) =270a(3) =10990a(4) =622725a(5) =43526469a(6) =2629049500a(7) =142957923228
External references
- oeis: A157571