A346697 - cp's OEIS frontend

A346697 Sum of the odd-indexed parts (odd bisection) of the multiset of prime indices of n.

n	a(n)
1	0
2	1
3	2
4	1
5	3
6	1
7	4
8	2
9	2
10	1
11	5
12	3
13	6
14	1
15	2
16	2
17	7
18	3
19	8
20	4
21	2
22	1
23	9
24	2
25	3
26	1
27	4
28	5
29	10
30	4
31	11
32	3
33	2
34	1
35	3
36	3
37	12
38	1
39	2
40	2
41	13
42	5
43	14
44	6
45	5
46	1
47	15
48	4
49	4
50	4
51	2
52	7
53	16
54	3
55	3
56	2
57	2
58	1
59	17
60	3
61	18
62	1
63	6
64	3
65	3
66	6
67	19
68	8
69	2
70	5
71	20
72	4
73	21
74	1
75	5
76	9
77	4
78	7
79	22
80	5
81	4
82	1

[0, 1, 2, 1, 3, 1, 4, 2, 2, 1, 5, 3, 6, 1, 2, 2, 7, 3, 8, 4, 2, 1, 9, 2, 3, 1, 4, 5, 10, 4, 11, 3, 2, 1, 3, 3, 12, 1, 2, 2, 13, 5, 14, 6, 5, 1, 15, 4, 4, 4, 2, 7, 16, 3, 3, 2, 2, 1, 17, 3, 18, 1, 6, 3, 3, 6, 19, 8, 2, 5, 20, 4, 21, 1, 5, 9, 4, 7, 22, 5, 4, 1]

cp's OEIS Frontend

A346697 Sum of the odd-indexed parts (odd bisection) of the multiset of prime indices of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	1
5	3
6	1
7	4
8	2
9	2
10	1
11	5
12	3
13	6
14	1
15	2
16	2
17	7
18	3
19	8
20	4
21	2
22	1
23	9
24	2
25	3
26	1
27	4
28	5
29	10
30	4
31	11
32	3
33	2
34	1
35	3
36	3
37	12
38	1
39	2
40	2
41	13
42	5
43	14
44	6
45	5
46	1
47	15
48	4
49	4
50	4
51	2
52	7
53	16
54	3
55	3
56	2
57	2
58	1
59	17
60	3
61	18
62	1
63	6
64	3
65	3
66	6
67	19
68	8
69	2
70	5
71	20
72	4
73	21
74	1
75	5
76	9
77	4
78	7
79	22
80	5
81	4
82	1

n	a(n)
1	0
2	1
3	2
4	1
5	3
6	1
7	4
8	2
9	2
10	1
11	5
12	3
13	6
14	1
15	2
16	2
17	7
18	3
19	8
20	4
21	2
22	1
23	9
24	2
25	3
26	1
27	4
28	5
29	10
30	4
31	11
32	3
33	2
34	1
35	3
36	3
37	12
38	1
39	2
40	2
41	13
42	5
43	14
44	6
45	5
46	1
47	15
48	4
49	4
50	4
51	2
52	7
53	16
54	3
55	3
56	2
57	2
58	1
59	17
60	3
61	18
62	1
63	6
64	3
65	3
66	6
67	19
68	8
69	2
70	5
71	20
72	4
73	21
74	1
75	5
76	9
77	4
78	7
79	22
80	5
81	4
82	1

n	a(n)
1	0
2	1
3	2
4	1
5	3
6	1
7	4
8	2
9	2
10	1
11	5
12	3
13	6
14	1
15	2
16	2
17	7
18	3
19	8
20	4
21	2
22	1
23	9
24	2
25	3
26	1
27	4
28	5
29	10
30	4
31	11
32	3
33	2
34	1
35	3
36	3
37	12
38	1
39	2
40	2
41	13
42	5
43	14
44	6
45	5
46	1
47	15
48	4
49	4
50	4
51	2
52	7
53	16
54	3
55	3
56	2
57	2
58	1
59	17
60	3
61	18
62	1
63	6
64	3
65	3
66	6
67	19
68	8
69	2
70	5
71	20
72	4
73	21
74	1
75	5
76	9
77	4
78	7
79	22
80	5
81	4
82	1