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 A101123 #29 Feb 03 2024 00:49:45 %S A101123 0,6,8,14,18,20,24,26,36,38,48,54,60,68,78,80,84,86,90,96,104,114,116, %T A101123 128,138,140,144,146,150,156,158,168,170,174,188,204,206,210,216,224, %U A101123 228,230,236,246,248,254,260,266,270,284,288,294,296,300,306,318,320 %N A101123 Numbers k for which 7*k + 11 is prime. %C A101123 Note that 7 is the largest single-digit prime and 11 is the smallest two-digit prime. %H A101123 Harvey P. Dale, <a href="/A101123/b101123.txt">Table of n, a(n) for n = 1..1000</a> %e A101123 For k=6, 7*6 + 11 = 53 (prime). %e A101123 For k=8, 7*8 + 11 = 67 (prime). %e A101123 For k=14, 7*14 + 11 = 109 (prime). %t A101123 Select[Range[0,500],PrimeQ[7#+11]&] (* _Harvey P. Dale_, Jun 05 2012 *) %o A101123 (PARI) isA101123(n)=isprime(7*n+11) \\ _Michael B. Porter_, Apr 20 2010 %Y A101123 Cf. A017029, A101084, A101086, A101444. %K A101123 nonn %O A101123 1,2 %A A101123 _Parthasarathy Nambi_, Jan 21 2005 %E A101123 Extended by _Ray Chandler_, Jan 25 2005