Sum of the seventh powers of the parts in the partitions of n into two parts.

Terms

a(0) =0a(1) =2a(2) =129a(3) =2444a(4) =18700a(5) =99012a(6) =376761a(7) =1216688a(8) =3297456a(9) =8158550a(10) =18080425a(11) =37847532a(12) =73399404a(13) =136971464a(14) =241561425a(15) =414517952a(16) =680856256a(17) =1095977898a(18) =1703414961a(19) =2607286700a(20) =3877286700a(21) =5697862412a(22) =8172733129a(23) =11613390384a(24) =16164030000a(25) =22330294142