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

Terms

a(0) =0a(1) =1a(2) =7a(3) =26a(4) =60a(5) =118a(6) =206a(7) =332a(8) =495a(9) =709a(10) =974a(11) =1299a(12) =1693a(13) =2159a(14) =2696a(15) =3321a(16) =4036a(17) =4847a(18) =5757a(19) =6781a(20) =7913a(21) =9165a(22) =10543a(23) =12053a(24) =13704a(25) =15498a(26) =17437a(27) =19538a(28) =21795a(29) =24220