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 A075559 #14 Feb 26 2025 18:12:57
%S A075559 11,12,33,24,15,36,77,48,99,110,1111,312,1313,714,315,416,1717,918,
%T A075559 1919,120,2121,1122,2323,624,125,1326,2727,728,2929,330,3131,832,3333,
%U A075559 1734,735,936,3737,1938,3939,240,4141,2142,4343,1144,945,2346,4747,1248,4949
%N A075559 Smallest multiple of n not equal to n ending in (digits of) n.
%H A075559 Harvey P. Dale, <a href="/A075559/b075559.txt">Table of n, a(n) for n = 1..1001</a>
%t A075559 edn[n_]:=Module[{k=2},While[Take[IntegerDigits[k*n],-IntegerLength[n]] != IntegerDigits[n],k++];k*n]; Array[edn,50] (* _Harvey P. Dale_, Jun 22 2022 *)
%Y A075559 Cf. A061760.
%K A075559 base,nonn
%O A075559 1,1
%A A075559 _Amarnath Murthy_, Sep 24 2002
%E A075559 More terms from _Ray Chandler_, Oct 12 2003
%E A075559 Offset corrected by _Sean A. Irvine_, Feb 26 2025