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 A077098 #21 Jul 08 2024 22:13:08
%S A077098 2,1,2,10,2,26,2,2,2,84531,2,531160,2,4738,2,3482830482,2,
%T A077098 428195747108,2
%N A077098 Length of period of the continued fraction expansion of sqrt(-1+n^n).
%C A077098 If a(n) = 2 then (n^n - 1) is in A013642. - _Bernard Schott_, Sep 25 2019
%F A077098 a(n) = A003285(A048861(n)). - _Michel Marcus_, Sep 27 2019
%t A077098 Table[Length[Part[ContinuedFraction[Sqrt[ -1+u^u]], 2]], {u, 2, 15}]
%Y A077098 Cf. A003285, A048861.
%K A077098 nonn,more
%O A077098 2,1
%A A077098 _Labos Elemer_, Nov 05 2002
%E A077098 a(17)-a(18) from _Chai Wah Wu_, Sep 24 2019
%E A077098 a(19)-a(20) from _Chai Wah Wu_, Sep 27 2019