Number of points in N^9 of norm <= n.

Terms

a(0) =1a(1) =10a(2) =265a(3) =2780a(4) =19250a(5) =91067a(6) =349122a(7) =1115334a(8) =3134307a(9) =7903501a(10) =18286018a(11) =39418159a(12) =79946582a(13) =154050794a(14) =283766861a(15) =503208408a(16) =861586362a(17) =1432132554a(18) =2314882321a(19) =3655071196a(20) =5640732550a(21) =8538547541a(22) =12683700617a(23) =18541085573