Half the number of length n integer sequences with sum zero and sum of squares 1922.

A157563

Half the number of length n integer sequences with sum zero and sum of squares 1922.

Terms

    a(0) =1a(1) =9a(2) =198a(3) =9930a(4) =447345a(5) =19373781a(6) =801643164a(7) =34613610228

External references