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

Terms

a(0) =0a(1) =4a(2) =13a(3) =41a(4) =82a(5) =158a(6) =255a(7) =403a(8) =580a(9) =824a(10) =1105a(11) =1469a(12) =1878a(13) =2386a(14) =2947a(15) =3623a(16) =4360a(17) =5228a(18) =6165a(19) =7249a(20) =8410a(21) =9734a(22) =11143a(23) =12731a(24) =14412a(25) =16288a(26) =18265a(27) =20453a(28) =22750a(29) =25274