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 A160592 #7 Mar 02 2021 03:19:57 %S A160592 4,8,11,14,19,22,27,31,34,36,38,46,47,48,58,61,63,67,73,75,85,90,93, %T A160592 95,99,101,105,111,114,115,117,125,129,131,133,138,141,143,149,153, %U A160592 155,157,163,167,175,177,179,181,188,193,202,207,210,213,217,222,224,229,232 %N A160592 Indices of primes congruent to 7 modulo 12. %C A160592 The asymptotic density of this sequence is 1/4 (by Dirichlet's theorem). - _Amiram Eldar_, Mar 02 2021 %F A160592 a(n) = A000720(A068229(n)). %e A160592 a(1) = 4 since the 4th prime, A000040(4) = 7, is the first one to be equal to 7 (mod 12). %e A160592 a(2) = 8 since the 8th prime, A000040(8) = 19, is the second one to be equal to 7 (mod 12). %o A160592 (PARI) for( n=1,999, prime(n)%12==7 & print1(n",")) %Y A160592 A116615 lists the even terms of this sequence, divided by 2. %Y A160592 Cf. A000720, A068229. %K A160592 nonn %O A160592 1,1 %A A160592 _M. F. Hasler_, May 22 2009