Numbers of the form Abs[m^m - n^n], where integers m,n>0.

Terms

a(0) =0a(1) =3a(2) =23a(3) =26a(4) =229a(5) =252a(6) =255a(7) =2869a(8) =3098a(9) =3121a(10) =3124a(11) =43531a(12) =46400a(13) =46629a(14) =46652a(15) =46655a(16) =776887a(17) =820418a(18) =823287a(19) =823516a(20) =823539a(21) =823542a(22) =15953673a(23) =16730560a(24) =16774091a(25) =16776960a(26) =16777189a(27) =16777212a(28) =16777215a(29) =370643273