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 A330312 #8 Dec 11 2019 16:40:24 %S A330312 1,1,2,4,2,3,3,4,3,3,2,12,12,4,12,12,2,9,9,12,9,9,12,9,9,4,9,9,12,9,9, %T A330312 12,9,9,2,36,36,12,36,36,12,36,36,4,36,36,12,36,36,12,36,36,2,27,27, %U A330312 36,27,27,36,27,27,12,27,27,36,27,27,36,27,27,12,27 %N A330312 Gaps between palindromes in base 3: first differences of A014190. %H A330312 Rémy Sigrist, <a href="/A330312/b330312.txt">Table of n, a(n) for n = 1..25000</a> %Y A330312 Cf. A014190, A002113, A086862. %K A330312 nonn,base %O A330312 1,3 %A A330312 _N. J. A. Sloane_, Dec 11 2019 %E A330312 More terms from _Rémy Sigrist_, Dec 11 2019