a(1)=1, a(n) = a(n-1) + n^3 if n odd, a(n) = a(n-1) + n^2 if n is even.

Terms

a(0) =1a(1) =5a(2) =32a(3) =48a(4) =173a(5) =209a(6) =552a(7) =616a(8) =1345a(9) =1445a(10) =2776a(11) =2920a(12) =5117a(13) =5313a(14) =8688a(15) =8944a(16) =13857a(17) =14181a(18) =21040a(19) =21440a(20) =30701a(21) =31185a(22) =43352a(23) =43928a(24) =59553a(25) =60229a(26) =79912a(27) =80696a(28) =105085a(29) =105985