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 A023156 #13 Mar 30 2012 18:35:18 %S A023156 1,2,3,3,5,6,5,5,5,10,3,9,9,10,15,9,9,10,7,15,15,6,7,15,5,18,7,15,9, %T A023156 30,5,13,9,18,25,15,13,14,27,25,7,30,11,9,25,14,5,27,11,10,27,27,17, %U A023156 14,15,25,21,18,7,45,9,10,29,17,45,18,13,27,21,50,5,25,23,26,15,21,15,54,23,45,9 %N A023156 Number of cycles of function f(x) = x^5 mod n. %C A023156 Not multiplicative; the smallest counterexample is a(63). - _T. D. Noe_, Nov 14 2006 %H A023156 David W. Wilson, <a href="/A023156/b023156.txt">Table of n, a(n) for n=1..10000</a> %Y A023156 Cf. A023153 %Y A023156 Cf. A023153-A023161 (cycles of the functions f(x)=x^k mod n for k=2..10) %K A023156 nonn %O A023156 1,2 %A A023156 _David W. Wilson_ %E A023156 Corrected by _Charles R Greathouse IV_, Sep 02 2009