A374663 - cp's OEIS frontend

A374663 Lexicographically earliest sequence of positive integers a(1), a(2), a(3), ... such that for any n > 0, Sum_{k = 1..n} 1 / (k*a(k)) < 1.

n	a(n)
1	2
2	2
3	2
4	4
5	10
6	201
7	34458
8	1212060151
9	1305857607493406801
10	1534737681943564047120326770001682121
11	2141290683979549415450148346297540185977813099483710032048213090481251382

[2, 2, 2, 4, 10, 201, 34458, 1212060151, 1305857607493406801, 1534737681943564047120326770001682121, 2141290683979549415450148346297540185977813099483710032048213090481251382]

cp's OEIS Frontend

A374663 Lexicographically earliest sequence of positive integers a(1), a(2), a(3), ... such that for any n > 0, Sum_{k = 1..n} 1 / (k*a(k)) < 1.

Table of values

List of values