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 A075002 #11 Oct 11 2015 23:45:58 %S A075002 1,2,2,2,5,2,11,6,8,10,106,2,11,22,5,6,21,8,27,20,11,106,33,6,25,30, %T A075002 26,24,31,20,46,6,113,64,45,36,21,64,11,20,3,24,19,128,35,68,8,6,53, %U A075002 50,21,120,83,26,135,128,27,82,104,20 %N A075002 a(n) = smallest k such that A007908(k) is divisible by n. %C A075002 Conjecture: For every n, a(n) is well-defined. %C A075002 The maximum of the first 10000 terms is a(6314) = 1002902 and A007908(1002902) is a 5902910-digit number. - _Rick L. Shepherd_, Oct 11 2015 %H A075002 Rick L. Shepherd, <a href="/A075002/b075002.txt">Table of n, a(n) for n = 1..10000</a> %e A075002 a(4) = 2 since A007908(2)=12 is divisible by 4. %e A075002 a(7) = 11 as 7 divides A007908(11)=1234567891011 and 7 does not divide any smaller concatenations. %o A075002 (PARI) a(n)=my(m=Mod(1,n),k=1); while(m, m=10^#Str(k++)*m+k); k \\ _Charles R Greathouse IV_, Oct 11 2015 %Y A075002 Cf. A007908. %K A075002 base,nonn %O A075002 1,2 %A A075002 _Amarnath Murthy_, Sep 01 2002 %E A075002 More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003 %E A075002 Edited by _Max Alekseyev_, Sep 30 2015