A015702 - cp's OEIS frontend

A015702 Numbers k where phi(k) + sigma(k) increases to a record value.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	10
9	12
10	16
11	18
12	20
13	24
14	30
15	36
16	40
17	42
18	48
19	56
20	60
21	72
22	84
23	90
24	96
25	108
26	120
27	144
28	168
29	180
30	210
31	216
32	240
33	280
34	288
35	300
36	324
37	336
38	360
39	420
40	480
41	504
42	540
43	576
44	600
45	648
46	660
47	672
48	720
49	840
50	960
51	1008
52	1080
53	1200
54	1260
55	1440

[1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 18, 20, 24, 30, 36, 40, 42, 48, 56, 60, 72, 84, 90, 96, 108, 120, 144, 168, 180, 210, 216, 240, 280, 288, 300, 324, 336, 360, 420, 480, 504, 540, 576, 600, 648, 660, 672, 720, 840, 960, 1008, 1080, 1200, 1260, 1440]

cp's OEIS Frontend

A015702 Numbers k where phi(k) + sigma(k) increases to a record value.

Table of values

List of values