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 A036180 #13 Jul 08 2025 21:41:35 %S A036180 0,34,70,68,1,8,31,6,44,35,86,42,25,65,71,40,89,78,81,69,5,24,77,76,2, %T A036180 59,18,3,13,9,46,74,60,27,32,16,91,19,95,7,85,39,4,58,45,15,84,14,62, %U A036180 36,63,93,10,52,87,37,55,47,67,43,64,80,75,12,26,94,57,61,51,66,11,50,28,29,72,53,21,33,30,41,88,23,17,73,90,38,83,92,54,79,56,49,20,22,82,48 %N A036180 Log base 5 (n) mod 97. %D A036180 I. M. Vinogradov, Elements of Number Theory, p. 225. %H A036180 I. M. Vinogradov, <a href="https://isidore.co/calibre/get/pdf/4459">Elements of Number Theory</a>, Translation of 5th revised edition, Dover Publications Inc., 1954, p. 225. %F A036180 Row n=25 of T(n,k) in A054503. - _Georg Fischer_, Jan 19 2020 %t A036180 a[1]=0; a[n_]:=MultiplicativeOrder[5, 97, {n}]; Array[a, 96] (* _Vincenzo Librandi_, Mar 28 2020 *) %Y A036180 Cf. A054503. %K A036180 nonn,fini,full %O A036180 1,2 %A A036180 _N. J. A. Sloane_ %E A036180 a(60)-a(96) from _Georg Fischer_, Jan 19 2020