A377205 - cp's OEIS frontend

A377205 Lexicographically earliest sequence of positive integers a(1), a(2), ... such that for any n >= 0, s(n) = Sum_{k=1..n} 1/(k^2*a(k)) < 1.

n	a(n)
1	2
2	1
3	1
4	1
5	1
6	1
7	3
8	9
9	171
10	122014
11	17661589931
12	412924014578486602517
13	1248808068140660770289141544749321839183623
14	4529027355107615424925871833487047912228337079416162414871862143803627237910792872226

[2, 1, 1, 1, 1, 1, 3, 9, 171, 122014, 17661589931, 412924014578486602517, 1248808068140660770289141544749321839183623, 4529027355107615424925871833487047912228337079416162414871862143803627237910792872226]

cp's OEIS Frontend

A377205 Lexicographically earliest sequence of positive integers a(1), a(2), ... such that for any n >= 0, s(n) = Sum_{k=1..n} 1/(k^2*a(k)) < 1.

Table of values

List of values