Half the number of length n integer sequences with sum zero and sum of squares 1682.

A157561

Half the number of length n integer sequences with sum zero and sum of squares 1682.

Terms

    a(0) =1a(1) =3a(2) =186a(3) =8710a(4) =366285a(5) =14870583a(6) =574288652a(7) =23199133896a(8) =906030228645

External references