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 A353444 #17 Jan 11 2025 10:57:41 %S A353444 7,12,14,17,19,23,26,28,29,31,34,35,38,42,43,46,47,48,49,51,53,54,55, %T A353444 56,57,58,59,61,62,63,65,67,68,69,70,71,72,73,76,77,78,79,83,85,86,87, %U A353444 89,91,92,93,94,95,97,98,102,103,104,105,107,109,112,113,114,115,116,117,118 %N A353444 Integers m such that the decimal expansion of 1/m contains the digit 8. %C A353444 If m is a term, 10*m is also a term, so terms with no trailing zeros are all primitive terms. %H A353444 <a href="/index/1#1overn">Index entries for sequences related to decimal expansion of 1/n</a>. %e A353444 m = 12 is a term since 1/12 = 0.08333333333... %e A353444 m = 17 is a term since 1/17 = 0.05882352941176470588235294117647... %e A353444 m = 125 is a term since 1/125 = 0.008. %t A353444 f[n_] := Union[ Flatten[ RealDigits[ 1/n][[1]] ]]; Select[ Range@ 150, MemberQ[f@#, 8] &] %t A353444 Select[Range[150],MemberQ[realDigitsRecip[#],8]&] (* The realDigitsRecip program is at A021200 *) (* _Harvey P. Dale_, Jan 11 2025 *) %Y A353444 A351474 (largest digit=8) and A352161 (smallest digit=8) are subsequences. %Y A353444 Similar with digit k: A352154 (k=0), A353437 (k=1), A353438 (k=2), A353439 (k=3), A353440 (k=4), A353441 (k=5), A353442 (k=6), A353443 (k=7), this sequence (k=8), A333237 (k=9). %K A353444 nonn,base %O A353444 1,1 %A A353444 _Bernard Schott_ and _Robert G. Wilson v_, Apr 25 2022