A220850 - cp's OEIS frontend

A220850 a(n+1) is equal to a(n) plus the number of primes between a(n) and 2*a(n) inclusively.

n	a(n)
1	1
2	2
3	4
4	6
5	8
6	10
7	14
8	17
9	22
10	28
11	35
12	43
13	53
14	65
15	78
16	93
17	111
18	129
19	153
20	179
21	210
22	245
23	285
24	328
25	381
26	441
27	508
28	582
29	668
30	764
31	870
32	990
33	1123
34	1270
35	1436
36	1625
37	1825
38	2054
39	2309
40	2590
41	2904
42	3246
43	3631
44	4052
45	4512
46	5022
47	5582
48	6197
49	6872
50	7612
51	8421
52	9312

[1, 2, 4, 6, 8, 10, 14, 17, 22, 28, 35, 43, 53, 65, 78, 93, 111, 129, 153, 179, 210, 245, 285, 328, 381, 441, 508, 582, 668, 764, 870, 990, 1123, 1270, 1436, 1625, 1825, 2054, 2309, 2590, 2904, 3246, 3631, 4052, 4512, 5022, 5582, 6197, 6872, 7612, 8421, 9312]

cp's OEIS Frontend

A220850 a(n+1) is equal to a(n) plus the number of primes between a(n) and 2*a(n) inclusively.

Table of values

List of values