A067657 Prime values of A001008, the numerators of the harmonic numbers.

3, 11, 137, 761, 7129, 18858053, 34395742267, 85691034670497533, 252476961434436524654789, 928551009361054917576341971, 42409610330030873613929048033, 4868007055309996043055960217131137

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..43

Formula

A001008 INTERSECT A000040.

a(n) = A001008(A056903(n)). - Amiram Eldar, Jun 02 2022

Mathematica

Table[ HarmonicNumber[n], {n, 0, 80}] // Numerator // Select[#, PrimeQ]& (* Jean-François Alcover, May 27 2013 *)

Crossrefs

Cf. A001008, A056903.

Sequence in context: A112957 A057205 A121897 * A063502 A329626 A072639

Adjacent sequences: A067654 A067655 A067656 * A067658 A067659 A067660

Keyword

nonn

Author

Benoit Cloitre, Feb 03 2002

Status

approved