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 A287940 #5 Jun 03 2017 11:15:58 %S A287940 3,5,11,13,29,31,47,61,71,409,2819,4261,113819,124633,236507,250693, %T A287940 501779,886609,29089889,57721663,157320827,465327091,812828249, %U A287940 1530361321 %N A287940 a(n) is the first odd prime greater than a(n-1) such that (a(1), ..., a(n)) forms a prime vector. a(1)=3, a(2)=5. %C A287940 A prime vector of order n is an array of n distinct primes P = (p_1, p_2, ..., p_n) such that every sum of an odd number of consecutive elements is also prime. The weight of the prime vector is the sum of its elements. For full details see the Kamenetsky paper. %C A287940 a(1)-a(24) were found by Herbert Kociemba. %H A287940 Dmitry Kamenetsky, <a href="https://arxiv.org/abs/1703.06778">Prime sums of primes</a>, arXiv:1703.06778 [math.HO], 2017. %H A287940 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_875.htm">Puzzle 875: Vector of primes that generates distinct primes</a> %Y A287940 Cf. A286263, A287939. %K A287940 nonn,more %O A287940 1,1 %A A287940 _Dmitry Kamenetsky_, Jun 03 2017