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 A137978 #17 Sep 08 2022 08:45:33 %S A137978 3,5,7,23,29,31,47,53,67,71,73,89,97,113,137,139,157,163,179,181,199, %T A137978 223,227,229,251,269,271,293,311,313,317,331,337,353,359,379,383,397, %U A137978 401,419,421,443,449,463,467,487,491,509,557,577,599,601,617,619,641 %N A137978 Primes congruent to {1, 3, 5, 7, 9} modulo 11. %C A137978 A039709(A049084(a(n))) = odd; complement of A137977. %H A137978 R. Zumkeller, <a href="/A137978/b137978.txt">Table of n, a(n) for n = 1..1001</a> %t A137978 Select[Flatten[# + {1, 3, 5, 7, 9}&/@(11Range[0, 80])], PrimeQ] (* _Harvey P. Dale_, Jan 15 2011 *) %o A137978 (Magma) [ p: p in PrimesUpTo(740) | p mod 11 in {1, 3, 5, 7, 9} ] // _Vincenzo Librandi_, Jan 25 2011 %Y A137978 Cf. A045415, A045429. %K A137978 nonn %O A137978 1,1 %A A137978 _Reinhard Zumkeller_, Feb 25 2008