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 A365813 #12 Sep 20 2023 11:45:57 %S A365813 16718,26378,46524,55187,58374,58452,60850,71299,78035,78269,84213, %T A365813 89052,95490,97080,115558,121097,128192,131194,133547,140018,140872, %U A365813 145319,147234,149897,149967,151169,155849,158007,158561,159134,167715,169884,170760,176101,177666,186876,189383,198170,198476 %N A365813 Numbers which form a prime by appending a 3-digit number and form no primes by appending 1 digit or 2 digits. %C A365813 Similar to A091089 but without the restriction of eliminating appending of a number beginning with zero. %H A365813 Robert Price, <a href="/A365813/b365813.txt">Table of n, a(n) for n = 1..13412</a> %Y A365813 Cf. A091089. A365812. %K A365813 nonn,base %O A365813 1,1 %A A365813 _Robert Price_, Sep 19 2023