A331137 - cp's OEIS frontend

A331137 a(n) = Sum_{primes p <= n} b(p-1), where b = A108548.

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

[0, 1, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12]

cp's OEIS Frontend

A331137 a(n) = Sum_{primes p <= n} b(p-1), where b = A108548.

Table of values

List of values

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

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

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