A289665 Number of integers in the interval [2,A289663(n)] whose greatest prime factor is equal to the n-th popular prime A385503(n).

4, 14, 25, 77, 151, 428, 616, 1005, 1517, 2902, 7664, 7722, 8284, 48380, 161644, 698074, 2761234, 8357693, 9758410, 20285553, 21123128, 43031555, 96835113, 318539488, 534261087, 672081919, 873949289, 1997008416, 2720040151, 3321778833, 3663025425, 3924572413, 7241174991

Offset: 1

Author

N. J. A. Sloane, Jul 25 2017

Keywords

• nonn
• more

Comments

See A385503 for further links and information.

Links

• Nathan McNew, Popular values of the largest prime divisor function (corrected version), page 16, November 2015.

Crossrefs

Cf. A006530, A385503, A289661-A289664.

Extensions

Edited, with terms updated from revised version of McNew, by Peter Munn, Jul 04 2025

Name corrected by Pontus von Brömssen, Jul 05 2025