Half the number of length n integer sequences with sum zero and sum of squares 5408.

A157584

Half the number of length n integer sequences with sum zero and sum of squares 5408.

Terms

    a(0) =1a(1) =9a(2) =90a(3) =17270a(4) =2392575a(5) =203322273a(6) =14072688875a(7) =881578169937

External references