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 A147643 #12 Aug 04 2019 06:38:44 %S A147643 7,17,162,2 %N A147643 Numbers A associated with the records of the merit function of the ABC conjecture admitting only C which are powers of 23. %C A147643 If records of the ABC merit function are listed scanning only parameters C of the form 23^x as described in A147642, a(n) is the value of A associated with B=A147641(n) and C=A147642(n). %H A147643 <a href="/index/Ab#abc">OEIS Index entries for sequences related to the abc conjecture</a>. %F A147643 a(n) = A147642(n)-A147641(n). %Y A147643 Cf. A085152, A085153, A147298-A147307, A147638-A147642. %K A147643 nonn,more %O A147643 1,1 %A A147643 _Artur Jasinski_, Nov 09 2008 %E A147643 Edited by _M. F. Hasler_, Jan 16 2015