A353931 - cp's OEIS frontend

A353931 Least run-sum of the prime indices of n.

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

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

cp's OEIS Frontend

A353931 Least run-sum of the prime indices of n.

Table of values

List of values

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

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

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