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 A109997 #11 Sep 19 2020 18:37:43
%S A109997 2,3,5,7,11,13,17,19,29,31,37,41,43,61,67,73,79,97,101,103,109,113,
%T A109997 127,137,151,157,163,173,181,193,197,199,211,229,233,241,257,271,277,
%U A109997 281,283,307,313,331,337,353,367,373,379,397,401,409,421,433,443,457,463
%N A109997 Primes where the arithmetic mean of the fractional parts of p/1,p/2,..., p/p is less than 1-gamma=0.422784...
%D A109997 S. R. Finch. Mathematical Constants. Cambridge University Press, 2003 ISBN 0-521-81802-2 p. 29
%D A109997 Stefan Kraemer. Eulers constant and related numbers, preprint, 2005.
%H A109997 Robert G. Wilson v, <a href="/A109997/b109997.txt">Table of n, a(n) for n = 1..1000</a>
%t A109997 With[{c=1-EulerGamma},Select[Prime[Range[100]],Mean[FractionalPart/@(#/ Range[#])]<c&]] (* _Harvey P. Dale_, Sep 19 2020 *)
%Y A109997 Cf. A104885, A109996.
%K A109997 nonn
%O A109997 1,1
%A A109997 _Stefan Krämer_, Sep 01 2005