A126279 - cp's OEIS frontend

A126279 Triangle read by rows: T(k,n) is number of numbers <= 2^n that are products of k primes.

n	a(n)
1	1
2	2
3	1
4	4
5	2
6	1
7	6
8	6
9	2
10	1
11	11
12	10
13	7
14	2
15	1
16	18
17	22
18	13
19	7
20	2
21	1
22	31
23	42
24	30
25	14
26	7
27	2
28	1
29	54
30	82
31	60
32	34
33	15
34	7
35	2
36	1
37	97
38	157
39	125
40	71
41	36
42	15
43	7
44	2
45	1
46	172
47	304
48	256
49	152
50	77
51	37
52	15
53	7
54	2
55	1
56	309
57	589
58	513
59	325
60	168
61	81
62	37
63	15
64	7
65	2
66	1
67	564
68	1124
69	1049
70	669
71	367
72	177
73	83
74	37

[1, 2, 1, 4, 2, 1, 6, 6, 2, 1, 11, 10, 7, 2, 1, 18, 22, 13, 7, 2, 1, 31, 42, 30, 14, 7, 2, 1, 54, 82, 60, 34, 15, 7, 2, 1, 97, 157, 125, 71, 36, 15, 7, 2, 1, 172, 304, 256, 152, 77, 37, 15, 7, 2, 1, 309, 589, 513, 325, 168, 81, 37, 15, 7, 2, 1, 564, 1124, 1049, 669, 367, 177, 83, 37]

cp's OEIS Frontend

A126279 Triangle read by rows: T(k,n) is number of numbers <= 2^n that are products of k primes.

Table of values

List of values