Number of nonnegative solutions to x^3 + y^3 + z^3 <= n^3.

Terms

a(0) =1a(1) =4a(2) =11a(3) =30a(4) =66a(5) =115a(6) =200a(7) =302a(8) =441a(9) =619a(10) =829a(11) =1085a(12) =1395a(13) =1771a(14) =2200a(15) =2666a(16) =3228a(17) =3843a(18) =4564a(19) =5351a(20) =6185a(21) =7143a(22) =8158a(23) =9349a(24) =10526a(25) =11934a(26) =13375a(27) =14896a(28) =16652a(29) =18381