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 A337649 #12 Oct 21 2020 20:19:57
%S A337649 2,5,11,13,17,23,29,31,37,41,43,47,53,61,67,71,79,97,101,103,107,109,
%T A337649 113,139,167,173,179,181,191,197,199,211,233,367
%N A337649 Primes p such that the first term in {A336957(i): i >= 3} that is divisible by p is 3*p.
%C A337649 It is conjectured that there are no other terms besides the 34 terms shown here.
%C A337649 See A337648 for further comments.
%C A337649 See also the comment in A336957 discussing when primes first appear in A336957.
%e A337649 2 is a term because the first even term in {A336957(i): i >= 3} is A336957(3) = 6 = 3*2.
%Y A337649 Cf. A336957, A337648.
%K A337649 nonn
%O A337649 1,1
%A A337649 _N. J. A. Sloane_, Sep 26 2020