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 A119753 #3 Mar 30 2012 18:36:04 %S A119753 3,5,7,11,13,19,71,73,79,139,431,433,439,499,859,4091,4093,4099,4159, %T A119753 4519,8179,86531,86533,86539,86599,86959,90619,173059,513101,513103, %U A119753 513109,513169,513529,517189,599629,1026199,913571,913573,913579,913639 %N A119753 Prime numbers in their order of occurrence and generated by A119751, the sequence of odd numbers defined recursively by a(1)=1 and a(i) + a(j) + 1 is prime for all i,j. %F A119753 Let a(n) be the sequence defined recursively by a(1)=1 and a(n) is the first odd number greater than a(n-1) such that 2*a(n)+1 is prime and a(i) + a(n) + 1 is prime for all i<=n-1. Then p(n) is the n-th prime in the lexicographic order a(i) + a(j) + 1, i>=j. %e A119753 a(1)=1, a(2)=3 so 1+1+1=3, 1+3+1=5, 3+3+1=7 so the first three elements are 3, 5, 7. %p A119753 OP:=[1]: P:=[3]: for w to 1 do for n from 0 to 12^6 do s:=6*n+3; Q:=map(z->s+z+1,[op(OP),s]); if andmap(isprime,Q) then OP:=[op(OP),s]; P:=[op(P),op(Q)]; print(s); print(Q); fi; od od; OP; P; %K A119753 nonn %O A119753 1,1 %A A119753 _Walter Kehowski_, Jun 17 2006, Jun 19 2006, Jun 25 2006