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 A011536 #20 Jul 08 2025 02:26:18 %S A011536 6,16,26,36,46,56,60,61,62,63,64,65,66,67,68,69,76,86,96,106,116,126, %T A011536 136,146,156,160,161,162,163,164,165,166,167,168,169,176,186,196,206, %U A011536 216,226,236,246,256,260,261,262,263,264,265,266,267,268 %N A011536 Numbers that contain a 6. %C A011536 These might be called "sexy" (or "sextic") numbers. - _Cino Hilliard_, Nov 28 2008 %H A011536 Vincenzo Librandi, <a href="/A011536/b011536.txt">Table of n, a(n) for n = 1..3439</a> %H A011536 <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>. %F A011536 a(n) ~ n. - _Charles R Greathouse IV_, Nov 02 2022 %t A011536 Select[Range[300], DigitCount[#, 10, 6]>0 &] (* _Vincenzo Librandi_, Feb 15 2017 *) %o A011536 (PARI) is(n)=!!setsearch(Set(digits(n)), 6) \\ _Charles R Greathouse IV_, Feb 12 2017 %o A011536 (Magma) [n: n in [0..500] | 6 in Intseq(n) ]; // _Vincenzo Librandi_, Feb 15 2017 %o A011536 (GAP) Filtered([1..270],n->6 in ListOfDigits(n)); # _Muniru A Asiru_, Feb 24 2019 %K A011536 nonn,base,easy %O A011536 1,1 %A A011536 _N. J. A. Sloane_