A122489 - cp's OEIS frontend

A122489 Partial sums of A111939 (= number of primes < semiprime(n)).

n	a(n)
1	2
2	5
3	9
4	13
5	19
6	25
7	33
8	41
9	50
10	59
11	70
12	81
13	92
14	104
15	116
16	130
17	145
18	160
19	176
20	192
21	208
22	226
23	244
24	263
25	284
26	305
27	327
28	350
29	373
30	396
31	420
32	444
33	468
34	492
35	519
36	548
37	578
38	608
39	638
40	668
41	698
42	728
43	759
44	791
45	823
46	857
47	891
48	925
49	959
50	993
51	1029
52	1066
53	1103
54	1140

[2, 5, 9, 13, 19, 25, 33, 41, 50, 59, 70, 81, 92, 104, 116, 130, 145, 160, 176, 192, 208, 226, 244, 263, 284, 305, 327, 350, 373, 396, 420, 444, 468, 492, 519, 548, 578, 608, 638, 668, 698, 728, 759, 791, 823, 857, 891, 925, 959, 993, 1029, 1066, 1103, 1140]

cp's OEIS Frontend

A122489 Partial sums of A111939 (= number of primes < semiprime(n)).

Table of values

List of values