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 A032588 #13 Dec 12 2019 07:54:37 %S A032588 7,37,67,87,127,237,267,297,307,327,357,367,427,477,487,517,537,577, %T A032588 717,727,777,787,867,897,927,937,957,997,1057,1087,1107,1117,1147, %U A032588 1167,1197,1357,1387,1417,1497,1567,1587,1597,1737,1767,1777,1797,1827,1857 %N A032588 Lucky numbers ending with digit 7. %C A032588 Also, lucky numbers (A000959) which are congruent to 2 mod 5 (because only numbers ending in 2 could make a difference, but these are removed in the 1st step of the lucky sieve). - _R. J. Mathar_, Apr 29 2008 %H A032588 Amiram Eldar, <a href="/A032588/b032588.txt">Table of n, a(n) for n = 1..10000</a> %Y A032588 Intersection of A000959 and A017353. %K A032588 nonn,base %O A032588 1,1 %A A032588 _Patrick De Geest_, Apr 15 1998 %E A032588 Edited by _N. J. A. Sloane_, May 15 2008 at the suggestion of _R. J. Mathar_