Second partial sums of ninth powers (A001017).

Terms

a(0) =1a(1) =514a(2) =20710a(3) =303050a(4) =2538515a(5) =14851676a(6) =67518444a(7) =254402940a(8) =828707925a(9) =2403012910a(10) =6335265586a(11) =15427298614a(12) =35123831015a(13) =75481410200a(14) =154282348760a(15) =301802764056a(16) =567911055849