A120361 - cp's OEIS frontend

A120361 Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.

n	a(n)
1	2
2	18
3	72
4	450
5	882
6	1250
7	2178
8	3042
9	4050
10	5202
11	6498
12	9522
13	11250
14	13122
15	15138
16	16200
17	17298
18	24642
19	30258
20	33282
21	39762
22	45000
23	50562
24	52488
25	56448
26	62658
27	64800
28	66978
29	71442
30	80802
31	90738
32	95922
33	101250
34	112338
35	124002
36	142578
37	169362
38	180000
39	183618
40	190962
41	198450
42	206082

[2, 18, 72, 450, 882, 1250, 2178, 3042, 4050, 5202, 6498, 9522, 11250, 13122, 15138, 16200, 17298, 24642, 30258, 33282, 39762, 45000, 50562, 52488, 56448, 62658, 64800, 66978, 71442, 80802, 90738, 95922, 101250, 112338, 124002, 142578, 169362, 180000, 183618, 190962, 198450, 206082]

cp's OEIS Frontend

A120361 Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k.

Table of values

List of values