A352753 - cp's OEIS frontend

A352753 a(n) = (pi(2n-1) - pi(n-1)) * Sum_{p <= n, p prime} p.

n	a(n)
1	0
2	4
3	10
4	10
5	20
6	20
7	51
8	34
9	51
10	68
11	112
12	112
13	164
14	123
15	164
16	205
17	290
18	232
19	385
20	308
21	385
22	462
23	600
24	600
25	600
26	600
27	700
28	700
29	903
30	903
31	1280
32	1120
33	1120
34	1280
35	1280
36	1440
37	1970
38	1773
39	1773
40	1970
41	2380
42	2380
43	2810
44	2529
45	2810
46	2810
47	3280
48	2952
49	3280
50	3280
51	3608

[0, 4, 10, 10, 20, 20, 51, 34, 51, 68, 112, 112, 164, 123, 164, 205, 290, 232, 385, 308, 385, 462, 600, 600, 600, 600, 700, 700, 903, 903, 1280, 1120, 1120, 1280, 1280, 1440, 1970, 1773, 1773, 1970, 2380, 2380, 2810, 2529, 2810, 2810, 3280, 2952, 3280, 3280, 3608]

cp's OEIS Frontend

A352753 a(n) = (pi(2n-1) - pi(n-1)) * Sum_{p <= n, p prime} p.

Table of values

List of values