Partial sums of floor(n^3/2).

Terms

a(0) =0a(1) =0a(2) =4a(3) =17a(4) =49a(5) =111a(6) =219a(7) =390a(8) =646a(9) =1010a(10) =1510a(11) =2175a(12) =3039a(13) =4137a(14) =5509a(15) =7196a(16) =9244a(17) =11700a(18) =14616a(19) =18045a(20) =22045a(21) =26675a(22) =31999a(23) =38082a(24) =44994a(25) =52806a(26) =61594a(27) =71435a(28) =82411a(29) =94605