A339511 - cp's OEIS frontend

A339511 Number of subsets of {1..n} whose elements have the same number of prime factors, counted with multiplicity.

n	a(n)
0	1
1	2
2	3
3	5
4	6
5	10
6	12
7	20
8	21
9	25
10	33
11	49
12	51
13	83
14	99
15	131
16	132
17	196
18	200
19	328
20	336
21	400
22	528
23	784
24	786
25	1042
26	1554
27	1570
28	1602
29	2114
30	2178
31	3202
32	3203
33	4227
34	6275
35	10371
36	10375
37	12423
38	20615
39	36999
40	37007
41	41103
42	41231
43	49423
44	49679
45	50191
46	82959
47	99343
48	99345
49	164881
50	165905
51	296977
52	299025
53	331793
54	331809
55	593953
56	593985
57	1118273
58	2166849
59	2232385

[1, 2, 3, 5, 6, 10, 12, 20, 21, 25, 33, 49, 51, 83, 99, 131, 132, 196, 200, 328, 336, 400, 528, 784, 786, 1042, 1554, 1570, 1602, 2114, 2178, 3202, 3203, 4227, 6275, 10371, 10375, 12423, 20615, 36999, 37007, 41103, 41231, 49423, 49679, 50191, 82959, 99343, 99345, 164881, 165905, 296977, 299025, 331793, 331809, 593953, 593985, 1118273, 2166849, 2232385]

cp's OEIS Frontend

A339511 Number of subsets of {1..n} whose elements have the same number of prime factors, counted with multiplicity.

Table of values

List of values