A054411 - cp's OEIS frontend

A054411 Numbers k such that Sum_{j} p_j = Sum_{j} e_j where Product_{j} p_j^(e_j) is the prime factorization of k.

n	a(n)
1	1
2	4
3	27
4	48
5	72
6	108
7	162
8	320
9	800
10	1792
11	2000
12	3125
13	3840
14	5000
15	5760
16	6272
17	8640
18	9600
19	10935
20	12500
21	12960
22	14400
23	18225
24	19440
25	21504
26	21600
27	21952
28	24000
29	29160
30	30375
31	31250
32	32256
33	32400
34	36000
35	43740
36	45056
37	48384
38	48600
39	50625
40	54000
41	60000
42	65610

[1, 4, 27, 48, 72, 108, 162, 320, 800, 1792, 2000, 3125, 3840, 5000, 5760, 6272, 8640, 9600, 10935, 12500, 12960, 14400, 18225, 19440, 21504, 21600, 21952, 24000, 29160, 30375, 31250, 32256, 32400, 36000, 43740, 45056, 48384, 48600, 50625, 54000, 60000, 65610]

cp's OEIS Frontend

A054411 Numbers k such that Sum_{j} p_j = Sum_{j} e_j where Product_{j} p_j^(e_j) is the prime factorization of k.

Table of values

List of values