Half the number of length n integer sequences with sum zero and sum of squares 1458.

A157559

Half the number of length n integer sequences with sum zero and sum of squares 1458.

Terms

    a(0) =1a(1) =3a(2) =162a(3) =5470a(4) =204405a(5) =10044237a(6) =418371436a(7) =15735232164a(8) =556455670755

External references