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 A071857 #9 Nov 22 2020 17:44:51 %S A071857 1,6,16,32,279,726,4141,4368,54482,112572,366613,978019,5342223, %T A071857 41589964,201780051,353794663,408307432,463394050,676353989,866725306, %U A071857 999357112,3878963429,4169753024,8541140255,23422387081,26113359872,940995107440,1104573841707 %N A071857 Engel expansion of sqrt(2*log(2)). %C A071857 a(1)=1, then PARI program gives a(n) for n>1. %o A071857 (PARI) s= sqrt(2*log(2)); for(i=1,30,s=s*ceil(1/s)-1; print1(ceil(1/s),","); ); %Y A071857 Cf. A064619, A006784. %K A071857 nonn %O A071857 1,2 %A A071857 _Benoit Cloitre_, Jun 09 2002