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 A037100 #15 Jul 03 2021 05:44:39
%S A037100 4,6,12,24,54,186,3246,25926,169314,412026,541524,37949286,124716066,
%T A037100 324532464,26678398374,3559613215806,30751771983294,20116294396883346
%N A037100 Lexically first set of (even) numbers, beginning with 4, such that for any two different terms, a(i) + a(j) + 1 is prime.
%H A037100 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_037.htm">Puzzle 37. Set of even numbers { ai } such that every ai + aj + 1 is prime (i & j are different)</a>, The Prime Puzzles and Problems Connection.
%e A037100 4+54+1 is prime.
%Y A037100 Cf. A093483, A103828, A119752, A133761.
%K A037100 nonn,more
%O A037100 1,1
%A A037100 _Carlos Rivera_
%E A037100 Edited and extended with a(15)-a(18) by _Don Reble_, Feb 13 2019