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

A211803

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

Terms

    a(0) =1a(1) =5a(2) =14a(3) =32a(4) =61a(5) =103a(6) =162a(7) =240a(8) =341a(9) =465a(10) =618a(11) =802a(12) =1017a(13) =1269a(14) =1560a(15) =1892a(16) =2267a(17) =2691a(18) =3164a(19) =3688a(20) =4269a(21) =4907a(22) =5604a(23) =6364a(24) =7193a(25) =8091a(26) =9058a(27) =10102a(28) =11223a(29) =12421

External references