Fourth partial sums of fourth powers (A000583).

Terms

a(0) =1a(1) =20a(2) =155a(3) =760a(4) =2814a(5) =8592a(6) =22770a(7) =54120a(8) =117975a(9) =239668a(10) =459173a(11) =837200a(12) =1463020a(13) =2464320a(14) =4019412a(15) =6372144a(16) =9849885a(17) =14884980a(18) =22040095a(19) =32037896a(20) =45795530a(21) =64464400a(22) =89475750a(23) =122592600a(24) =165968595a(25) =222214356a(26) =294471945a(27) =386498080