A324573 - cp's OEIS frontend

A324573 a(1) = 0; for n > 1, a(n) = sigma(A048675(n)).

n	a(n)
1	0
2	1
3	3
4	3
5	7
6	4
7	15
8	4
9	7
10	6
11	31
12	7
13	63
14	13
15	12
16	7
17	127
18	6
19	255
20	12
21	18
22	18
23	511
24	6
25	15
26	48
27	12
28	18
29	1023
30	8
31	2047
32	6
33	39
34	84
35	28
36	12
37	4095
38	176
39	54
40	8
41	8191
42	12
43	16383
44	39
45	15
46	258
47	32767
48	12
49	31
50	13
51	144
52	54
53	65535
54	8
55	42
56	12
57	252
58	800
59	131071
60	15
61	262143
62	1302
63	28
64	12
65	91
66	20
67	524287
68	144
69	528
70	14
71	1048575
72	8
73	2097151
74	2736
75	18

[0, 1, 3, 3, 7, 4, 15, 4, 7, 6, 31, 7, 63, 13, 12, 7, 127, 6, 255, 12, 18, 18, 511, 6, 15, 48, 12, 18, 1023, 8, 2047, 6, 39, 84, 28, 12, 4095, 176, 54, 8, 8191, 12, 16383, 39, 15, 258, 32767, 12, 31, 13, 144, 54, 65535, 8, 42, 12, 252, 800, 131071, 15, 262143, 1302, 28, 12, 91, 20, 524287, 144, 528, 14, 1048575, 8, 2097151, 2736, 18]

cp's OEIS Frontend

A324573 a(1) = 0; for n > 1, a(n) = sigma(A048675(n)).

Table of values

List of values