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 A158698 #3 Jul 22 2020 11:39:23 %S A158698 5,6,8,9,11,12,14,15,17,18,19,20,23,24,26,27,29,30,32,33,34,35,38,39, %T A158698 40,41,43,44,45,46,48,49,53,54,56,57,59,60,61,62,63,64,65,66,67,68,71, %U A158698 72,73,74,75,76,77,78,80,81,82,83,85,86,87,88,92,93,94,95,96,97,98,99,101 %N A158698 Numbers not occurring in A073627. %Y A158698 Cf. A073627 a(1)=1, for n > 1, a(n) is the smallest positive integer such that a(n) >= a(n-1) and a(n)+a(n-1) is prime. %K A158698 nonn %O A158698 1,1 %A A158698 _Zak Seidov_, Mar 24 2009