A082473 - cp's OEIS frontend

A082473 Numbers n such that n = phi(x)*core(x) for some x <= n, where phi(x) is the Euler totient function and core(x) the squarefree part of x.

n	a(n)
1	1
2	2
3	6
4	8
5	12
6	20
7	32
8	40
9	42
10	48
11	54
12	84
13	108
14	110
15	120
16	128
17	156
18	160
19	192
20	220
21	240
22	252
23	272
24	312
25	336
26	342
27	432
28	486
29	500
30	504
31	506
32	512
33	544
34	640
35	660
36	684
37	768
38	812
39	840
40	880
41	930
42	936
43	960
44	972
45	1000
46	1012
47	1080
48	1248
49	1320
50	1332
51	1344
52	1624
53	1632

[1, 2, 6, 8, 12, 20, 32, 40, 42, 48, 54, 84, 108, 110, 120, 128, 156, 160, 192, 220, 240, 252, 272, 312, 336, 342, 432, 486, 500, 504, 506, 512, 544, 640, 660, 684, 768, 812, 840, 880, 930, 936, 960, 972, 1000, 1012, 1080, 1248, 1320, 1332, 1344, 1624, 1632]

cp's OEIS Frontend

A082473 Numbers n such that n = phi(x)*core(x) for some x <= n, where phi(x) is the Euler totient function and core(x) the squarefree part of x.

Table of values

List of values