Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+5x+5y>0.

Terms

a(0) =0a(1) =4a(2) =32a(3) =108a(4) =256a(5) =492a(6) =854a(7) =1360a(8) =2034a(9) =2900a(10) =3965a(11) =5285a(12) =6869a(13) =8741a(14) =10925a(15) =13419a(16) =16297a(17) =19559a(18) =23229a(19) =27331a(20) =31854a(21) =36890a(22) =42430a(23) =48498a(24) =55118a(25) =62270a(26) =70064a(27) =78482a(28) =87548a(29) =97286