Half the number of length n integer sequences with sum zero and sum of squares 1568.

A157560

Half the number of length n integer sequences with sum zero and sum of squares 1568.

Terms

    a(0) =1a(1) =9a(2) =54a(3) =4730a(4) =384345a(5) =17551611a(6) =639200583a(7) =21540673143a(8) =709364141280

External references