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 A171153 #16 Feb 13 2021 01:14:42
%S A171153 1,6,7,12,13,18,19,22,23,24,25,30,31,32,33,36,37,42,43,46,47,48,49,52,
%T A171153 53,54,55,60,61,62,63,66,67,72,73,74,75,78,79,82,83,84,85,88,89,90,91,
%U A171153 92,93,96,97,102,103,108,109,112,113,114,115,116,117,118,119,120,121
%N A171153 Numbers that are not in A169606.
%F A171153 a(n) ~ n. - _Charles R Greathouse IV_, May 25 2011
%o A171153 (PARI) print1(1); p=5; forprime(q=7,127, for(k=p-1,q-4, print1(", "k)); p=q) \\ _Charles R Greathouse IV_, May 25 2011
%Y A171153 Cf. A169606.
%K A171153 nonn,easy
%O A171153 1,2
%A A171153 _Juri-Stepan Gerasimov_, Dec 04 2009, Jan 01 2010
%E A171153 Corrected (88 inserted) by _R. J. Mathar_, Jun 04 2010