This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A173235 #8 Jun 04 2021 13:04:53
%S A173235 1,3,11,67,629,7781,117655,2097159,43046729,1000000009,25937424611,
%T A173235 743008370699,23298085122493,793714773254157,29192926025390639,
%U A173235 1152921504606846991,48661191875666868497,2185911559738696531985,104127350297911241532859
%N A173235 a(n) = n^(n-1) + n - 1.
%F A173235 a(n) = n^(n-1)+n-1.
%F A173235 a(n) = A172165(n)-1. - _R. J. Mathar_, Mar 11 2010
%t A173235 Table[n^(n-1)+n-1,{n,30}] (* _Harvey P. Dale_, Jan 21 2015 *)
%K A173235 nonn
%O A173235 1,2
%A A173235 _Philippe Deléham_, Feb 13 2010
%E A173235 More terms from _Harvey P. Dale_, Jan 21 2015