a(n) = n^7 - (n-1)^7 + (n-2)^7 - ... + ((-1)^n)*0^7.

Terms

a(0) =0a(1) =1a(2) =127a(3) =2060a(4) =14324a(5) =63801a(6) =216135a(7) =607408a(8) =1489744a(9) =3293225a(10) =6706775a(11) =12780396a(12) =23051412a(13) =39697105a(14) =65716399a(15) =105142976a(16) =163292480a(17) =247046193a(18) =365173839a(19) =528697900a(20) =751302100a(21) =1049786441a(22) =1444571447a(23) =1960254000