%I #19 Jun 02 2022 14:50:06
%S 3,11,137,761,7129,18858053,34395742267,85691034670497533,
%T 252476961434436524654789,928551009361054917576341971,
%U 42409610330030873613929048033,4868007055309996043055960217131137
%N Prime values of A001008, the numerators of the harmonic numbers.
%H Amiram Eldar, <a href="/A067657/b067657.txt">Table of n, a(n) for n = 1..43</a>
%F A001008 INTERSECT A000040.
%F a(n) = A001008(A056903(n)). - _Amiram Eldar_, Jun 02 2022
%t Table[ HarmonicNumber[n], {n, 0, 80}] // Numerator // Select[#, PrimeQ]& (* _Jean-François Alcover_, May 27 2013 *)
%Y Cf. A001008, A056903.
%K nonn
%O 1,1
%A _Benoit Cloitre_, Feb 03 2002