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 A067510 #6 Apr 20 2020 21:46:29 %S A067510 6,1296,279936,1679616,10077696,60466176,13060694016,78364164096, %T A067510 2821109907456,16926659444736,101559956668416,3656158440062976, %U A067510 789730223053602816,4738381338321616896,28430288029929701376 %N A067510 Powers of 6 with digit sum divisible by 6. %H A067510 Robert Israel, <a href="/A067510/b067510.txt">Table of n, a(n) for n = 1..630</a> %p A067510 select(n -> convert(convert(n,base,10),`+`)::even, [seq(6^i, i=1..100)]); # _Robert Israel_, Apr 20 2020 %Y A067510 Cf. A067499, A067500, A067501, A067502, A067503, A067504, A067505, A067506, A067507, A067508, A067509. %Y A067510 Intersection of A000400 and A054683. %K A067510 base,easy,nonn %O A067510 1,1 %A A067510 _Amarnath Murthy_, Feb 11 2002 %E A067510 Offset changed by _Robert Israel_, Apr 20 2020