Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2+x^2+y^2>=n.

Terms

a(0) =0a(1) =1a(2) =8a(3) =27a(4) =63a(5) =124a(6) =215a(7) =339a(8) =508a(9) =725a(10) =993a(11) =1324a(12) =1718a(13) =2186a(14) =2733a(15) =3358a(16) =4079a(17) =4896a(18) =5812a(19) =6836a(20) =7974a(21) =9235a(22) =10616a(23) =12132a(24) =13789a(25) =15587a(26) =17538a(27) =19639a(28) =21904a(29) =24341