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 A076979 #10 Dec 11 2024 05:42:04
%S A076979 12,13,15,17,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,
%T A076979 39,42,43,45,47,50,51,52,53,54,55,56,57,58,59,62,63,65,67,70,71,72,73,
%U A076979 74,75,76,77,78,79,82,83,85,87,92,93,95,97,101,102,103,105
%N A076979 Deleting exactly one digit yields a prime.
%H A076979 Andrew Howroyd, <a href="/A076979/b076979.txt">Table of n, a(n) for n = 1..10000</a>
%o A076979 (PARI) isok(n)={my(b=1); while(b<=n && !isprime(n%b + n\b\10*b), b*=10); b<=n} \\ _Andrew Howroyd_, Dec 10 2024
%Y A076979 Cf. A034895.
%K A076979 base,easy,nonn
%O A076979 1,1
%A A076979 _Amarnath Murthy_, Oct 23 2002