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 A105982 #18 Sep 11 2023 09:10:47 %S A105982 223,227,229,2221,22229,22222223,222222227,22222222223,22222222222229, %T A105982 222222222222227,222222222222222221,2222222222222222222222222227, %U A105982 222222222222222222222222222222222223 %N A105982 Near-repdigit primes with at least two 2's as the repeated digit. %H A105982 Robert Price, <a href="/A105982/b105982.txt">Table of n, a(n) for n = 1..25</a> %e A105982 a(2)=227 is a term because all digits are equal to 2 except one. %Y A105982 Cf. A105976, A105978, A105979, A105980, A105982, A365592, A365596, A365597, A365598. %K A105982 base,nonn %O A105982 1,1 %A A105982 _Shyam Sunder Gupta_, Apr 29 2005 %E A105982 Name clarified by _Robert Price_, Sep 10 2023