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 A205171 #19 Apr 14 2023 23:32:25 %S A205171 17,41,137,281,521,569,617,641,809,857,881,1049,1289,1481,1697,1721, %T A205171 2081,2129,2657,2729,2801,2969,3257,3329,3929,4001,4049,4217,4241, %U A205171 4337,4481,4649,4721,5009,5417,5441,5657,5849,6089,6449,6569,6689,6761,7457 %N A205171 The lesser of twin primes == 1 (mod 8). %t A205171 Select[ Prime@ Range@ 1000, Mod[#, 8] == 1 && PrimeQ[# + 2] &] %Y A205171 Cf. A071695, A205172. %Y A205171 Intersection of A017077 and A001359. %K A205171 easy,nonn %O A205171 1,1 %A A205171 _Robert G. Wilson v_, Jan 22 2012