A065392 - cp's OEIS frontend

A065392 a(n) = A062401(A065391(n)): phi(sigma(m)) peak values for numbers m (listed in A065391) at which those peaks are first reached.

n	a(n)
1	1
2	2
3	6
4	8
5	12
6	30
7	36
8	72
9	126
10	180
11	360
12	432
13	660
14	930
15	1512
16	2160
17	3300
18	3780
19	5184
20	6552
21	11160
22	13860
23	19800
24	23232
25	32760
26	45360
27	47520
28	50400
29	58080
30	61776
31	102300
32	110160
33	137592
34	155520
35	163296
36	196560
37	212960
38	252000
39	272160
40	284580

[1, 2, 6, 8, 12, 30, 36, 72, 126, 180, 360, 432, 660, 930, 1512, 2160, 3300, 3780, 5184, 6552, 11160, 13860, 19800, 23232, 32760, 45360, 47520, 50400, 58080, 61776, 102300, 110160, 137592, 155520, 163296, 196560, 212960, 252000, 272160, 284580]

cp's OEIS Frontend

A065392 a(n) = A062401(A065391(n)): phi(sigma(m)) peak values for numbers m (listed in A065391) at which those peaks are first reached.

Table of values

List of values