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 A067923 #11 Nov 22 2020 17:49:05 %S A067923 1,1,1,8,12,135,199,378,600,1836,4897,8198,8993,84887,450287,892157, %T A067923 5053447,5183243,15350505,19963471,31631271,37655416,2138752269, %U A067923 4805947342,14508700588,27508373127,28635924075,30814114095,32073629885,961160400603,3607716972786 %N A067923 Engel expansion of log(23). %o A067923 (PARI) \\ a(1)=1 and for n>1: %o A067923 s=log(23); for(i=1,30,s=s*ceil(1/s)-1; print1(ceil(1/s),","); ); %Y A067923 See A006784 for explanation of Engel expansions. Log(23) is the first number of the form Log(n), n an integer, for which it is not known whether a BBP formula exists. %Y A067923 Cf. A016646. %K A067923 easy,nonn %O A067923 1,4 %A A067923 _Benoit Cloitre_, Mar 03 2002