A342163 - cp's OEIS frontend

A342163 a(n) is the number of numbers greater than 1 and up to prime(n)^2 whose prime factors are all less than or equal to prime(n).

n	a(n)
1	2
2	6
3	15
4	29
5	60
6	87
7	137
8	176
9	247
10	360
11	422
12	568
13	689
14	776
15	923
16	1136
17	1369
18	1494
19	1764
20	1978
21	2128
22	2451
23	2710
24	3074
25	3562
26	3870
27	4077
28	4411
29	4638
30	4995
31	6026
32	6426
33	6987
34	7271
35	8180
36	8493
37	9134
38	9802
39	10319
40	11030
41	11767
42	12139
43	13314
44	13712
45	14329
46	14742

[2, 6, 15, 29, 60, 87, 137, 176, 247, 360, 422, 568, 689, 776, 923, 1136, 1369, 1494, 1764, 1978, 2128, 2451, 2710, 3074, 3562, 3870, 4077, 4411, 4638, 4995, 6026, 6426, 6987, 7271, 8180, 8493, 9134, 9802, 10319, 11030, 11767, 12139, 13314, 13712, 14329, 14742]

cp's OEIS Frontend

A342163 a(n) is the number of numbers greater than 1 and up to prime(n)^2 whose prime factors are all less than or equal to prime(n).

Table of values

List of values