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 A077097 #12 Aug 29 2019 10:19:15
%S A077097 1,1,4,1,30,1,32,1,1,1,20554,1,23522,1,1013500,1,29130218,1,
%T A077097 3123943068,1
%N A077097 Quotient cycle length in continued fraction expansion of sqrt(1+n^n).
%t A077097 Table[Length[Part[ContinuedFraction[Sqrt[1+u^u]], 2]], {u, 1, 15}]
%Y A077097 Cf. A003285, A077098.
%K A077097 nonn,more
%O A077097 1,3
%A A077097 _Labos Elemer_, Nov 05 2002
%E A077097 a(17)-a(18) from _Daniel Suteu_, Jan 25 2019
%E A077097 a(19)-a(20) from _Vaclav Kotesovec_, Aug 29 2019