A172418 - cp's OEIS frontend

A172418 Numbers k that have measure of smoothness J larger than 3, where J = log(k)/log(rad(k)) and rad(k) is the product of the distinct prime divisors of k (A007947).

n	a(n)
1	16
2	32
3	64
4	81
5	128
6	243
7	256
8	288
9	324
10	384
11	432
12	486
13	512
14	576
15	625
16	648
17	729
18	768
19	864
20	972
21	1024
22	1152
23	1250
24	1280
25	1296
26	1458
27	1536
28	1600
29	1728
30	1944
31	2000
32	2048
33	2187
34	2304
35	2401
36	2500
37	2560
38	2592
39	2916
40	3072
41	3125
42	3136
43	3200
44	3456
45	3584
46	3645

[16, 32, 64, 81, 128, 243, 256, 288, 324, 384, 432, 486, 512, 576, 625, 648, 729, 768, 864, 972, 1024, 1152, 1250, 1280, 1296, 1458, 1536, 1600, 1728, 1944, 2000, 2048, 2187, 2304, 2401, 2500, 2560, 2592, 2916, 3072, 3125, 3136, 3200, 3456, 3584, 3645]

cp's OEIS Frontend

A172418 Numbers k that have measure of smoothness J larger than 3, where J = log(k)/log(rad(k)) and rad(k) is the product of the distinct prime divisors of k (A007947).

Table of values

List of values