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

Terms

a(0) =0a(1) =0a(2) =1a(3) =5a(4) =13a(5) =28a(6) =50a(7) =80a(8) =121a(9) =175a(10) =244a(11) =327a(12) =425a(13) =544a(14) =683a(15) =845a(16) =1028a(17) =1236a(18) =1470a(19) =1733a(20) =2027a(21) =2349a(22) =2706a(23) =3096a(24) =3520a(25) =3985a(26) =4489a(27) =5034a(28) =5619a(29) =6247