A336929 - cp's OEIS frontend

A336929 a(n) = A331410(sigma(n)), where A331410 is totally additive with a(2) = 0 and a(p) = 1 + a(p+1) for odd primes.

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	1
7	0
8	3
9	2
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	2
20	2
21	0
22	2
23	1
24	3
25	1
26	2
27	2
28	1
29	3
30	2
31	0
32	3
33	1
34	3
35	1
36	3
37	3
38	3
39	1
40	4
41	2
42	1
43	2
44	2
45	3
46	2
47	1
48	1
49	4
50	2
51	2
52	2
53	3
54	3
55	2
56	3
57	2
58	4
59	3
60	2
61	1
62	1
63	2
64	1
65	2
66	2
67	3
68	3
69	1
70	2
71	2
72	5
73	4
74	4
75	1
76	3
77	1
78	2
79	2
80	2
81	4
82	3
83	2
84	1
85	3
86	3
87	3
88	4
89	4
90	4
91	1
92	2
93	0
94	2
95	3
96	3
97	2
98	5
99	3
100	2
101	4
102	3
103	2
104	4
105	1

[0, 1, 0, 1, 1, 1, 0, 3, 2, 2, 1, 1, 1, 1, 1, 1, 2, 3, 2, 2, 0, 2, 1, 3, 1, 2, 2, 1, 3, 2, 0, 3, 1, 3, 1, 3, 3, 3, 1, 4, 2, 1, 2, 2, 3, 2, 1, 1, 4, 2, 2, 2, 3, 3, 2, 3, 2, 4, 3, 2, 1, 1, 2, 1, 2, 2, 3, 3, 1, 2, 2, 5, 4, 4, 1, 3, 1, 2, 2, 2, 4, 3, 2, 1, 3, 3, 3, 4, 4, 4, 1, 2, 0, 2, 3, 3, 2, 5, 3, 2, 4, 3, 2, 4, 1]

cp's OEIS Frontend

A336929 a(n) = A331410(sigma(n)), where A331410 is totally additive with a(2) = 0 and a(p) = 1 + a(p+1) for odd primes.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	1
7	0
8	3
9	2
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	2
20	2
21	0
22	2
23	1
24	3
25	1
26	2
27	2
28	1
29	3
30	2
31	0
32	3
33	1
34	3
35	1
36	3
37	3
38	3
39	1
40	4
41	2
42	1
43	2
44	2
45	3
46	2
47	1
48	1
49	4
50	2
51	2
52	2
53	3
54	3
55	2
56	3
57	2
58	4
59	3
60	2
61	1
62	1
63	2
64	1
65	2
66	2
67	3
68	3
69	1
70	2
71	2
72	5
73	4
74	4
75	1
76	3
77	1
78	2
79	2
80	2
81	4
82	3
83	2
84	1
85	3
86	3
87	3
88	4
89	4
90	4
91	1
92	2
93	0
94	2
95	3
96	3
97	2
98	5
99	3
100	2
101	4
102	3
103	2
104	4
105	1

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	1
7	0
8	3
9	2
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	2
20	2
21	0
22	2
23	1
24	3
25	1
26	2
27	2
28	1
29	3
30	2
31	0
32	3
33	1
34	3
35	1
36	3
37	3
38	3
39	1
40	4
41	2
42	1
43	2
44	2
45	3
46	2
47	1
48	1
49	4
50	2
51	2
52	2
53	3
54	3
55	2
56	3
57	2
58	4
59	3
60	2
61	1
62	1
63	2
64	1
65	2
66	2
67	3
68	3
69	1
70	2
71	2
72	5
73	4
74	4
75	1
76	3
77	1
78	2
79	2
80	2
81	4
82	3
83	2
84	1
85	3
86	3
87	3
88	4
89	4
90	4
91	1
92	2
93	0
94	2
95	3
96	3
97	2
98	5
99	3
100	2
101	4
102	3
103	2
104	4
105	1

n	a(n)
1	0
2	1
3	0
4	1
5	1
6	1
7	0
8	3
9	2
10	2
11	1
12	1
13	1
14	1
15	1
16	1
17	2
18	3
19	2
20	2
21	0
22	2
23	1
24	3
25	1
26	2
27	2
28	1
29	3
30	2
31	0
32	3
33	1
34	3
35	1
36	3
37	3
38	3
39	1
40	4
41	2
42	1
43	2
44	2
45	3
46	2
47	1
48	1
49	4
50	2
51	2
52	2
53	3
54	3
55	2
56	3
57	2
58	4
59	3
60	2
61	1
62	1
63	2
64	1
65	2
66	2
67	3
68	3
69	1
70	2
71	2
72	5
73	4
74	4
75	1
76	3
77	1
78	2
79	2
80	2
81	4
82	3
83	2
84	1
85	3
86	3
87	3
88	4
89	4
90	4
91	1
92	2
93	0
94	2
95	3
96	3
97	2
98	5
99	3
100	2
101	4
102	3
103	2
104	4
105	1