Number of (w,x,y) with all terms in {0,...,n} and w != x and x > range(w,x,y).

Terms

a(0) =0a(1) =0a(2) =2a(3) =10a(4) =26a(5) =56a(6) =100a(7) =166a(8) =252a(9) =368a(10) =510a(11) =690a(12) =902a(13) =1160a(14) =1456a(15) =1806a(16) =2200a(17) =2656a(18) =3162a(19) =3738a(20) =4370a(21) =5080a(22) =5852a(23) =6710a(24) =7636a(25) =8656a(26) =9750a(27) =10946a(28) =12222a(29) =13608