A001694 - cp's OEIS frontend

A001694 Powerful numbers, definition (1): if a prime p divides n then p^2 must also divide n (also called squareful, square full, square-full or 2-powerful numbers).

n	a(n)
1	1
2	4
3	8
4	9
5	16
6	25
7	27
8	32
9	36
10	49
11	64
12	72
13	81
14	100
15	108
16	121
17	125
18	128
19	144
20	169
21	196
22	200
23	216
24	225
25	243
26	256
27	288
28	289
29	324
30	343
31	361
32	392
33	400
34	432
35	441
36	484
37	500
38	512
39	529
40	576
41	625
42	648
43	675
44	676
45	729
46	784
47	800
48	841
49	864
50	900
51	961
52	968
53	972
54	1000

[1, 4, 8, 9, 16, 25, 27, 32, 36, 49, 64, 72, 81, 100, 108, 121, 125, 128, 144, 169, 196, 200, 216, 225, 243, 256, 288, 289, 324, 343, 361, 392, 400, 432, 441, 484, 500, 512, 529, 576, 625, 648, 675, 676, 729, 784, 800, 841, 864, 900, 961, 968, 972, 1000]

cp's OEIS Frontend

A001694 Powerful numbers, definition (1): if a prime p divides n then p^2 must also divide n (also called squareful, square full, square-full or 2-powerful numbers).

Table of values

List of values