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 A087864 #14 Jan 19 2023 11:10:02
%S A087864 3,7,31,211,2311,43891,1272811,47093971,2213416591,148298911531,
%T A087864 15274787887591,2734187031878611,522229723088814511,
%U A087864 116457228248805635731,31559908855426327282831,9247053294639913893869191,2931315894400852704356533231,1691369271069292010413719673711
%N A087864 Primes generated from A039726.
%D A087864 Harvey Dubner, Recursive Prime Generating Sequences, Journal of Recreational Mathematics, Vol. 29, No. 3 (1998), pp. 170-175, see p. 172, Table 2.
%H A087864 Amiram Eldar, <a href="/A087864/b087864.txt">Table of n, a(n) for n = 1..217</a>
%t A087864 k = 1; cp = 2; ct = 1; n[ct] = 3; While[ct < 20, k++; p = Prime[k]; cp1 = cp*p; If[PrimeQ[cp1 + 1], cp = cp1; ct++; n[ct] = cp + 1]]; Table[n[k], {k, 1, ct}] (* _Lei Zhou_ *)
%Y A087864 Cf. A039726.
%K A087864 nonn
%O A087864 1,1
%A A087864 _Lekraj Beedassy_, Oct 10 2003
%E A087864 More terms from _Ray Chandler_, Nov 06 2003