A137148 - cp's OEIS frontend

A137148 a(n) = k*phi(k), where k is the n-th nonprime number.

n	a(n)
1	1
2	8
3	12
4	32
5	54
6	40
7	48
8	84
9	120
10	128
11	108
12	160
13	252
14	220
15	192
16	500
17	312
18	486
19	336
20	240
21	512
22	660
23	544
24	840
25	432
26	684
27	936
28	640
29	504
30	880
31	1080
32	1012
33	768
34	2058
35	1000
36	1632
37	1248
38	972
39	2200
40	1344
41	2052
42	1624
43	960
44	1860
45	2268
46	2048
47	3120
48	1320
49	2176
50	3036

[1, 8, 12, 32, 54, 40, 48, 84, 120, 128, 108, 160, 252, 220, 192, 500, 312, 486, 336, 240, 512, 660, 544, 840, 432, 684, 936, 640, 504, 880, 1080, 1012, 768, 2058, 1000, 1632, 1248, 972, 2200, 1344, 2052, 1624, 960, 1860, 2268, 2048, 3120, 1320, 2176, 3036]

cp's OEIS Frontend

A137148 a(n) = k*phi(k), where k is the n-th nonprime number.

Table of values

List of values