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 A061492 #5 Mar 05 2015 12:24:36 %S A061492 8,172,1585108,4768417578272894, %T A061492 931322574615480750806365966798663150842303643 %N A061492 a(1) = 8, a(n) = least number such that the concatenation a(n)a(n-1)...a(1) is a cube. %e A061492 a(1) = 8, a(2) = 172, a(2)a(1) = 1728 = 12^3. %Y A061492 Cf. A061359, A061361, A061363, A061491. %K A061492 base,nonn %O A061492 1,1 %A A061492 _Amarnath Murthy_, May 06 2001 %E A061492 Corrected and extended by Ulrich Schimke (ulrschimke(AT)aol.com), Nov 06 2001. Next element has 135 digits.