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 A382863 #7 Apr 13 2025 16:17:11
%S A382863 17,19,47,53,79,89,97,109,113,127,223,251,239,269,241,271,337,379,353,
%T A382863 397,383,431,433,487,463,521,607,683,673,757,719,809,863,971,881,991,
%U A382863 1087,1223,1153,1297,1279,1439,1297,1459,1327,1493,1361,1531,1423,1601
%N A382863 a(2*k-1) and a(2*k) are a pair of prime numbers where 9*a(2*k-1) and 8*a(2*k) are neighboring integers.
%H A382863 Steven Lu, <a href="/A382863/b382863.txt">Table of n, a(n) for n = 1..10000</a>
%e A382863 a(5) = 79 and a(6) = 89 are such a pair, because 79*9=711 and 89*8=712 are neighboring integers.
%t A382863 Flatten[{#, FirstCase[{(9 # + 1)/8, (9 # - 1)/8}, _Integer]} & /@ Select[Prime /@ Range[225], PrimeQ[(9 # + 1)/8] || PrimeQ[(9 # - 1)/8] &]]
%K A382863 nonn,tabf
%O A382863 1,1
%A A382863 _Steven Lu_, Apr 07 2025