A052486 - cp's OEIS frontend

A052486 Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power.

n	a(n)
1	72
2	108
3	200
4	288
5	392
6	432
7	500
8	648
9	675
10	800
11	864
12	968
13	972
14	1125
15	1152
16	1323
17	1352
18	1372
19	1568
20	1800
21	1944
22	2000
23	2312
24	2592
25	2700
26	2888
27	3087
28	3200
29	3267
30	3456
31	3528
32	3872
33	3888
34	4000
35	4232
36	4500
37	4563
38	4608
39	5000
40	5292
41	5324
42	5400
43	5408
44	5488
45	6075

[72, 108, 200, 288, 392, 432, 500, 648, 675, 800, 864, 968, 972, 1125, 1152, 1323, 1352, 1372, 1568, 1800, 1944, 2000, 2312, 2592, 2700, 2888, 3087, 3200, 3267, 3456, 3528, 3872, 3888, 4000, 4232, 4500, 4563, 4608, 5000, 5292, 5324, 5400, 5408, 5488, 6075]

cp's OEIS Frontend

A052486 Achilles numbers - powerful but imperfect: if n = Product(p_i^e_i) then all e_i > 1 (i.e., powerful), but the highest common factor of the e_i is 1, i.e., not a perfect power.

Table of values

List of values