A212638 - cp's OEIS frontend

A212638 a(n) = n-th powerful number that is the first integer of its prime signature, divided by its largest squarefree divisor: A003557(A181800(n)).

n	a(n)
1	1
2	2
3	4
4	8
5	16
6	6
7	32
8	12
9	64
10	24
11	36
12	128
13	48
14	72
15	256
16	96
17	144
18	30
19	512
20	192
21	216
22	288
23	60
24	1024
25	384
26	432
27	576
28	120
29	2048
30	768
31	864
32	180
33	1152
34	240
35	1296
36	4096
37	1536
38	1728
39	360
40	2304
41	480
42	2592
43	8192
44	3072
45	3456
46	720
47	900
48	4608
49	960
50	5184
51	1080
52	16384

[1, 2, 4, 8, 16, 6, 32, 12, 64, 24, 36, 128, 48, 72, 256, 96, 144, 30, 512, 192, 216, 288, 60, 1024, 384, 432, 576, 120, 2048, 768, 864, 180, 1152, 240, 1296, 4096, 1536, 1728, 360, 2304, 480, 2592, 8192, 3072, 3456, 720, 900, 4608, 960, 5184, 1080, 16384]

cp's OEIS Frontend

A212638 a(n) = n-th powerful number that is the first integer of its prime signature, divided by its largest squarefree divisor: A003557(A181800(n)).

Table of values

List of values