Number of points in N^5 of norm <= n.

Terms

a(0) =1a(1) =6a(2) =36a(3) =157a(4) =482a(5) =1203a(6) =2673a(7) =5139a(8) =9389a(9) =15930a(10) =25810a(11) =39855a(12) =59711a(13) =86346a(14) =122467a(15) =168957a(16) =229743a(17) =305153a(18) =400844a(19) =518154a(20) =662629a(21) =835490a(22) =1044410a(23) =1292216a(24) =1588236a(25) =1930057a(26) =2334622a(27) =2798143a(28) =3340038a(29) =3955063