A173746 - cp's OEIS frontend

A173746 Numbers k such that tau(tau(k)) = rad(k).

n	a(n)
1	1
2	2
3	4
4	16
5	27
6	64
7	72
8	96
9	108
10	288
11	432
12	486
13	648
14	768
15	972
16	1024
17	1536
18	1728
19	3456
20	4096
21	5832
22	6561
23	13122
24	17496
25	20736
26	24576
27	27648
28	39366
29	41472
30	65536
31	98304
32	104976
33	110592
34	147456
35	186624
36	256000
37	262144
38	314928
39	400000
40	419904
41	472392

[1, 2, 4, 16, 27, 64, 72, 96, 108, 288, 432, 486, 648, 768, 972, 1024, 1536, 1728, 3456, 4096, 5832, 6561, 13122, 17496, 20736, 24576, 27648, 39366, 41472, 65536, 98304, 104976, 110592, 147456, 186624, 256000, 262144, 314928, 400000, 419904, 472392]

cp's OEIS Frontend

A173746 Numbers k such that tau(tau(k)) = rad(k).

Table of values

List of values