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 A161020 #14 Sep 05 2016 17:36:02
%S A161020 370,407,481,518,592,629,370370,407407,481481,518518,592592,629629,
%T A161020 370370370,407407407,456790123,469135802,481481481,493827160,
%U A161020 506172839,518518518,530864197,543209876,592592592,629629629,370370370370
%N A161020 All the non-repdigit terms of A160818.
%C A161020 All known terms are multiples of 111/3 = 37.
%C A161020 Non-repdigit numbers n such that ((10^A055642(n)-1)/9)*(A007953(n)/A055642(n)) = n. So the sequence is infinite. - _Altug Alkan_, Sep 05 2016
%e A161020 For example with 370: (073+037+307+370+703+730)/6 = 370.
%p A161020 read("transforms3") ; isrep := proc(n) if nops(convert(convert(n,base,10),set)) = 1 then true; else false; fi; end: a160818 := BFILETOLIST("b160818.txt") ; for i from 1 to 400 do a := op(i,a160818) ; if not isrep(a) then printf("%d,",a) ; fi; od: # _R. J. Mathar_, Jul 04 2009
%Y A161020 Cf. A160818, A275772, A275945.
%K A161020 base,nonn
%O A161020 1,1
%A A161020 _Johan Särnbratt_, Jun 02 2009
%E A161020 More terms from _R. J. Mathar_, Jul 04 2009