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 A277779 #28 Oct 08 2022 00:01:20 %S A277779 1,2,3,4,6,7,8,12,14,15,16,22,24,30,36,42,44,48,60,63,72,80,90,96,120, %T A277779 156,158,160,186,192,212,214,216,222,240,288,312,420,432,468,474,480, %U A277779 484,618,620,624,840,942,948,960,996,1124,1200,1224,1494,1560,1656 %N A277779 Numbers k that only contain a 0 in bases that divide k. %C A277779 Probably finite. %H A277779 Chai Wah Wu, <a href="/A277779/b277779.txt">Table of n, a(n) for n = 1..261</a> (all terms < 10^11; first 250 terms from Charles R Greathouse IV) %e A277779 6 only contains a 0 in bases 2, 3, and 6. Those bases divide 6. Therefore, 6 is in this sequence. %o A277779 (PARI) is(n)=for(b=2,sqrtint(n-1), if(Set(digits(n,b))[1]==0 && n%b, return(0))); 1 \\ _Charles R Greathouse IV_, Oct 31 2016 %Y A277779 Cf. A069575. %K A277779 nonn,base %O A277779 1,2 %A A277779 _Bobby Jacobs_, Oct 30 2016 %E A277779 More terms from _Alois P. Heinz_, Oct 30 2016