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 A087769 #7 Sep 26 2020 15:34:30 %S A087769 2,3,5,7,11,19,43,59,29,457,13,47,349,103,257,109,449,397,431,17,37, %T A087769 97,233,653,79,101,127,701,367,197,3863,131,1627,379,547,151,587,1667, %U A087769 433,643,617,181,191,277,887,599,3709,1973,809,619,239,659,1747,1877,1433 %N A087769 Minimal prime whose reversal is a multiple of n-th prime. %e A087769 n=100, p(n)=541, minimal prime whose reversal is a multiple of 541 is 2801. %t A087769 Module[{nn=600,irp},irp=IntegerReverse/@Prime[Range[nn]];Table[ IntegerReverse[ SelectFirst[irp,IntegerQ[#/p]&]],{p,Prime[Range[60]]}]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 26 2020 *) %Y A087769 Cf. A007488. %K A087769 easy,nonn,base %O A087769 1,1 %A A087769 _Zak Seidov_, Oct 03 2003