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 A166391 #16 Jun 13 2021 08:28:00 %S A166391 187,238,1870,1921,2380,2431,2754,2805,3264,3315,3587,3638,4097,4148, %T A166391 5661,5712,5984,6171,6222,6494,6545,6868,6919,7055,7106,7378,7429, %U A166391 8891,8942,9452,9503,9775,9826 %N A166391 Multiples of 17 whose reversal + 1 is also a multiple of 17. %H A166391 G. C. Greubel, <a href="/A166391/b166391.txt">Table of n, a(n) for n = 1..10000</a> %t A166391 Select[17 Range[6!], Divisible[FromDigits[Reverse[IntegerDigits[#]]] + 1, 17] &] (* _G. C. Greubel_, May 12 2016 *) %Y A166391 Subsequence of A008599. %K A166391 nonn,base %O A166391 1,1 %A A166391 _Claudio Meller_, Oct 13 2009