A309781 - cp's OEIS frontend

A309781 a(n) is the smallest even number m having n distinct odd prime divisors p_1, p_2, ..., p_n, each of which (p_i; i=1..n) has the property that there exists a k_i (0 < k_i < p_i-1) such that p_i - k_i | m - k_i.

n	a(n)
1	20
2	110
3	2926
4	43010
5	704990
6	37461710
7	859382810
8	48530806610
9	2383068532130
10	139761750534406
11	6586251483915290
12	302528651777276210
13	37556939168033169170
14	2727217723862008961870
15	222939356264469226235810

[20, 110, 2926, 43010, 704990, 37461710, 859382810, 48530806610, 2383068532130, 139761750534406, 6586251483915290, 302528651777276210, 37556939168033169170, 2727217723862008961870, 222939356264469226235810]

cp's OEIS Frontend

A309781 a(n) is the smallest even number m having n distinct odd prime divisors p_1, p_2, ..., p_n, each of which (p_i; i=1..n) has the property that there exists a k_i (0 < k_i < p_i-1) such that p_i - k_i | m - k_i.

Table of values

List of values