Fourth partial sums of eighth powers (A001016).

Terms

a(0) =1a(1) =260a(2) =7595a(3) =94360a(4) =723534a(5) =4037712a(6) =17944290a(7) =67127880a(8) =219319815a(9) =642251428a(10) =1718012933a(11) =4258676240a(12) =9892043980a(13) =21721707840a(14) =45414150132a(15) =90930820464a(16) =175208925885a(17) =326205634020a(18) =588861675535