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 A085135 #23 Sep 19 2024 16:34:13 %S A085135 1,2,3,4,5,6,7,8,9,10,12,18,20,21,24,27,30,36,40,42,45,48,50,54,60,63, %T A085135 70,72,80,81,84,90,100,108,200,243,300,324,400,405,432,450,486,500, %U A085135 504,540,567,600,648,675,700,756,800,810,864,900,1000,1008,2000,3000,4000 %N A085135 Numbers whose cyclic permutations are all 7-smooth (A002473). %C A085135 Sequence is infinite with trivial terms of the form k*10^r, k = 1 to 9. Conjecture: There are finitely many nontrivial terms (not of the form k*10^r). All the two-digit terms are the same as those of A085133. %e A085135 243 is a term as 243, 432 and 324 all are terms of A002473. 243 = 3^5, 432 = 2^4*3^3, 324 = 2^2*3^4. %Y A085135 Cf. A002473, A005349, A085133. %K A085135 base,nonn %O A085135 1,2 %A A085135 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jul 06 2003 %E A085135 More terms from _David Wasserman_, Jan 28 2005