A120349 - cp's OEIS frontend

A120349 Refactorable numbers k such that the number of odd divisors r is odd, the number of even divisors s is even and both r and s are divisors of k.

n	a(n)
1	36
2	3600
3	8100
4	10000
5	22500
6	26244
7	32400
8	90000
9	142884
10	202500
11	396900
12	518400
13	656100
14	810000
15	980100
16	1285956
17	1368900
18	1587600
19	1679616
20	2286144
21	2340900
22	2624400
23	2924100

[36, 3600, 8100, 10000, 22500, 26244, 32400, 90000, 142884, 202500, 396900, 518400, 656100, 810000, 980100, 1285956, 1368900, 1587600, 1679616, 2286144, 2340900, 2624400, 2924100]

cp's OEIS Frontend

A120349 Refactorable numbers k such that the number of odd divisors r is odd, the number of even divisors s is even and both r and s are divisors of k.

Table of values

List of values