Half the number of length n integer sequences with sum zero and sum of squares 2450.

A157567

Half the number of length n integer sequences with sum zero and sum of squares 2450.

Terms

    a(0) =1a(1) =9a(2) =378a(3) =13330a(4) =689715a(5) =30934071a(6) =1463659596a(7) =72481823352

External references