a(n) + a(n+1) + a(n+2) = n^5, with a(1) = a(2) = 0.

Terms

a(0) =0a(1) =0a(2) =1a(3) =31a(4) =211a(5) =782a(6) =2132a(7) =4862a(8) =9813a(9) =18093a(10) =31143a(11) =50764a(12) =79144a(13) =118924a(14) =173225a(15) =245675a(16) =340475a(17) =462426a(18) =616956a(19) =810186a(20) =1048957a(21) =1340857a(22) =1694287a(23) =2118488a(24) =2623568a(25) =3220568a(26) =3921489a(27) =4739319a(28) =5688099a(29) =6782950