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 A176012 #6 Oct 28 2015 04:31:50 %S A176012 227,827,1201,1621,2179,2333,2441,2711,3041,3251,3329,3541,5147,5167, %T A176012 5701,5711,6131,6661,6833,7321,7331,8501,9209,9239,10271,13807,14251, %U A176012 14449,14629,15731,15761,16007,16139,16619,16741,17291,19421,20231,20441,20507,22441 %N A176012 Chen primes A109611(k) which have the same sum-of-digits as their index k. %C A176012 The associated indices k are: %C A176012 38, 98, 130, 163, 199, 209, 218, 236, 260, 272, 278, 292, 386, 388, 418, 419, 443, 469, 479, 508,... %C A176012 The indices of A109611(k) in the primes A000040 are A000720(A109611(k)) = %C A176012 49, 144, 197, 257, 327, 345, 362, 395, 436, 458, 469, 496, 686, 688, 751, 752, 799, 859, 880, 933, 934, 1060, .. %C A176012 Some entries are also Honaker primes (A033548): 2441, 5701, 5711, 15761, 26119, 31517, 34471, 37019, 44221,... %D A176012 M. du Sautoy: Die Musik der Primzahlen: Auf den Spuren des groessten Raetsels der Mathematik, Beck, 4. Auflage, 2005 %H A176012 B. Green and T. Tao, <a href="http://dx.doi.org/10.5802/jtnb.538">Restriction Theory of the Selberg Sieve, with Applications</a>, J. Théor. Nombres Bordeaux 18, 2006. %F A176012 {A109611(k): A007953(A109611(k)) = A007953(k) }. %e A176012 a(1) = 227 = A109611(38) where 2+2+7 = 11 = 3+8. %e A176012 a(2) = 827 = A109611(98), where 8+2+7 =17= 9+8. %Y A176012 Cf. A033548, A109611, A174924. %K A176012 base,nonn %O A176012 1,1 %A A176012 Ulrich Krug (leuchtfeuer37(AT)gmx.de), Apr 06 2010 %E A176012 9241 replaced by 9239, and lists of examples reduced by _R. J. Mathar_, Jun 07 2010