A120359 - cp's OEIS frontend

A120359 Even refactorable numbers k such that the number r of odd divisors is odd, the number s of even divisors is even, both r and s are divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.

n	a(n)
1	36
2	3600
3	8100
4	10000
5	26244
6	32400
7	142884
8	202500
9	396900
10	518400
11	656100
12	810000
13	1587600
14	1679616
15	2286144
16	2624400
17	3572100
18	6350400
19	9144576
20	9922500
21	12960000
22	14288400
23	20575296
24	25401600
25	28579716
26	32148900
27	39690000
28	41990400
29	48024900
30	57153600
31	89302500

[36, 3600, 8100, 10000, 26244, 32400, 142884, 202500, 396900, 518400, 656100, 810000, 1587600, 1679616, 2286144, 2624400, 3572100, 6350400, 9144576, 9922500, 12960000, 14288400, 20575296, 25401600, 28579716, 32148900, 39690000, 41990400, 48024900, 57153600, 89302500]

cp's OEIS Frontend

A120359 Even refactorable numbers k such that the number r of odd divisors is odd, the number s of even divisors is even, both r and s are divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.

Table of values

List of values