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

Terms

a(0) =0a(1) =4a(2) =17a(3) =47a(4) =98a(5) =178a(6) =291a(7) =445a(8) =644a(9) =896a(10) =1205a(11) =1579a(12) =2022a(13) =2542a(14) =3143a(15) =3833a(16) =4616a(17) =5500a(18) =6489a(19) =7591a(20) =8810a(21) =10154a(22) =11627a(23) =13237a(24) =14988a(25) =16888a(26) =18941a(27) =21155a(28) =23534a(29) =26086