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 A057841 #7 Oct 15 2013 22:30:56 %S A057841 4,8,2048,34359738368,2361183241434822606848, %T A057841 3138550867693340381917894711603833208051177722232017256448 %N A057841 a(n) = 2^A057838(n) corresponding to extremal cases of A055079. %H A057841 Ray Chandler, <a href="/A057841/b057841.txt">Table of n, a(n) for n=1..17</a> %F A057841 a(n) = 2^A057838(n) = A055079(A057838(n)). %e A057841 a(7) = 2^419 which has 127 decimal digits. %e A057841 a(35) = 2^15239 which has 4588 decimal digits. %Y A057841 Cf. A000005, A001221, A001222, A055079, A058060, A058061, A057838. %K A057841 nonn %O A057841 1,1 %A A057841 _Labos Elemer_, Nov 24 2000 %E A057841 Edited by _Ray Chandler_, Aug 14 2010