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 A235695 #7 Apr 29 2014 22:49:29 %S A235695 1023469,1023479,1023547,1023574,1023586,1023647,1023649,1023657, %T A235695 1023689,1023745,1023746,1023749,1023794,1023847,1023879,1023965, %U A235695 1023985,1024367,1024369,1024537,1024538,1024563,1024567,1024583,1024637,1024679,1024687,1024735 %N A235695 Semiprimes which have one or more occurrences of exactly seven different digits. %o A235695 (PARI) %o A235695 list(lim)=my(v=List(), t); forprime(p=2, sqrt(lim), t=p; forprime(q=p, lim\t, listput(v, t*q))); vecsort(Vec(v)) \\ From A001358 %o A235695 b=list(1030000); s=[]; for(n=1, #b, if(#vecsort(eval(Vec(Str(b[n]))),,8)==7, s=concat(s, b[n]))); s %Y A235695 Cf. A235690-A235694, A235696. %Y A235695 Cf. A235154-A235161. %K A235695 nonn,base %O A235695 1,1 %A A235695 _Colin Barker_, Jan 14 2014