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 A135463 #11 Sep 29 2024 11:57:49 %S A135463 1,11,111,1111,11111,111111,1111111,11111111,111111111,1111111111, %T A135463 11111111111,111111111111,1111111111111,11111111111111, %U A135463 111111111111111,1111111111111111,11111111111111111,111111111111111111,216343649812512729 %N A135463 Numbers n with property that for each single digit d of n, we can also see the decimal expansions of d^2 and d^3 as substrings of n. Also n may not contain any 0 digits. %H A135463 David Applegate, <a href="/A135463/b135463.txt">Table of n, a(n) for n = 1..300</a> %H A135463 David Applegate, <a href="/A135463/a135463.cc.txt">C++ program for sequences of this type</a> %o A135463 (C++) // For C++ program see the Applegate link. %Y A135463 Cf. A134962. %K A135463 nonn,base %O A135463 1,2 %A A135463 Proposed by _Zak Seidov_, Feb 04 2007; computed by _David Applegate_ and _N. J. A. Sloane_, Feb 07 2008