A289663 a(n) is the largest m such that p = n-th popular prime = A124661(n) is first popular on the interval [2,m].

17, 119, 279, 1858, 5471, 29301, 53474, 117303, 220523, 611374, 2642391, 2672025, 2952463, 41192601, 237611044, 1967277194, 13692930957, 64358549949, 79880100420, 220369251374, 232880841877, 618765808209, 1882062587041, 9607847299025, 19364476224949

Offset

1,1

Comments

There is a slight doubt about these numbers since McNew only carried a search up to a certain point.

Links

Table of n, a(n) for n=1..25.

Nathan McNew, Popular values of the largest prime divisor function, arXiv:1504.05985 [math.NT], 2015.

Nathan McNew, The Most Frequent Values of the Largest Prime Divisor Function, Exper. Math., 2017, Vol. 26, No. 2, 210-224.

Crossrefs

Cf. A006530, A124661, A289661-A289665.

Sequence in context: A066607 A083200 A102353 * A048714 A010823 A022709

Adjacent sequences: A289660 A289661 A289662 * A289664 A289665 A289666

Keyword

nonn

Author

N. J. A. Sloane, Jul 25 2017

Status

approved