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 A051808 #11 Jul 20 2024 12:36:49 %S A051808 6,16,23,28,32,44,47,48,60,61,68,74,82,84,86,106,116,123,128,132,144, %T A051808 147,148,160,161,168,174,182,184,186,203,208,213,218,224,227,228,230, %U A051808 231,238,242,244,246,256,264,265,267,272,276 %N A051808 Numbers with nonzero multiplicative digital root 6. %H A051808 Harvey P. Dale, <a href="/A051808/b051808.txt">Table of n, a(n) for n = 1..1000</a> %H A051808 <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>. %F A051808 A051802^-1(6) %t A051808 nzdr6Q[n_]:=NestWhile[Times@@DeleteCases[IntegerDigits[#],0]&,n,#>9&]==6; Select[Range[ 300],nzdr6Q] (* _Harvey P. Dale_, Jul 20 2024 *) %Y A051808 Part of histogram of A051802. %K A051808 nonn,easy,base %O A051808 1,1 %A A051808 _Dan Hoey_, Dec 09 1999