Half the number of length n integer sequences with sum zero and sum of squares 968.

A157554

Half the number of length n integer sequences with sum zero and sum of squares 968.

Terms

    a(0) =1a(1) =3a(2) =66a(3) =3990a(4) =178335a(5) =6510483a(6) =190667659a(7) =5047394427a(8) =131071431060

External references