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 A340202 #13 Jan 11 2021 23:40:12 %S A340202 2,1,3,20,5,110,7,4,11,200,13,22,17,1001,19,40,23,6,29,1010,31,15,37, %T A340202 112,41,1100,43,121,47,24,53,33,59,2000,61,42,67,130,71,10001,73,51, %U A340202 79,202,83,60,89,8,97,220,101,10010,103,301,107,10100,109,310,113 %N A340202 Primes followed by the difference from the next prime calculated by adding the digits of the lexicographically earliest distinct term. %e A340202 Prime 2 + (1) = prime 3; %e A340202 prime 3 + (2+0) = prime 5; %e A340202 prime 5 + (1+1+0) = prime 7; %e A340202 prime 7 + (4) = prime 11; %e A340202 prime 11 + (2+0+0) = prime 13; %e A340202 prime 13 + (2+2) = 17; etc. %Y A340202 Cf. A000040 (primes), A219606. %Y A340202 Differences between consecutive primes: A001223, A134735, A340063. %K A340202 base,nonn %O A340202 1,1 %A A340202 _Carole Dubois_, Dec 31 2020