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 A279419 #16 Apr 22 2017 15:13:11 %S A279419 0,2,4,6,28,58,62,80,82,88,112,118,124,128,148,152,164,166,178,190, %T A279419 208,212,214,224,238,242,248,250,268,284,290,292,296,298,308,320,322, %U A279419 326,328,332,338,346,358,368,380,388,392,398,406,410,418,422,430,434,440 %N A279419 Numbers k from A284919 such that either k-1 or k+1 is in A277688. %C A279419 We conjecture that the sequence is infinite. This sequence shows the proximity of A284919 and A277688 based on Goldbach and Lemoine-Levy representations of even and odd numbers respectively. %C A279419 The differences between the positions of the corresponding terms of A284919 and A277688 are 0,0,0,1,0,2,2,1,1,1,2,3,2,2,2,2,3,1,... . %C A279419 The differences between these terms are -1,-1,-1,1,-1,-1,1,1,-1,-1,-1,-1,-1,1,-1,1,1,... . %Y A279419 Cf. A284919, A277688. %K A279419 nonn %O A279419 1,2 %A A279419 _Vladimir Shevelev_, Apr 11 2017 %E A279419 More terms from _Peter J. C. Moses_, Apr 11 2017