Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 2w+x+y>0.

Terms

a(0) =0a(1) =3a(2) =30a(3) =101a(4) =244a(5) =479a(6) =834a(7) =1329a(8) =1992a(9) =2843a(10) =3910a(11) =5213a(12) =6780a(13) =8631a(14) =10794a(15) =13289a(16) =16144a(17) =19379a(18) =23022a(19) =27093a(20) =31620a(21) =36623a(22) =42130a(23) =48161a(24) =54744a(25) =61899a(26) =69654a(27) =78029a(28) =87052a(29) =96743