A378314 - cp's OEIS frontend

A378314 a(n) = number of subsets of {1, 2, ..., n} that represent the first k divisors of m for some positive integers m and 1 <= k <= A000005(m).

n	a(n)
0	0
1	1
2	2
3	4
4	6
5	12
6	16
7	28
8	36
9	52
10	70
11	118
12	150
13	246
14	318
15	382
16	430
17	670
18	798
19	1278
20	1566
21	1886
22	2270
23	3230
24	3742
25	4702
26	5854
27	6814
28	7966
29	11806
30	14878
31	22558
32	25630
33	32542
34	40222
35	46366
36	52510
37	70942
38	86302
39	100126
40	112414
41	149278
42	172318
43	246046
44	295198
45	344350
46	405790
47	553246
48	626974
49	774430
50	897310

[0, 1, 2, 4, 6, 12, 16, 28, 36, 52, 70, 118, 150, 246, 318, 382, 430, 670, 798, 1278, 1566, 1886, 2270, 3230, 3742, 4702, 5854, 6814, 7966, 11806, 14878, 22558, 25630, 32542, 40222, 46366, 52510, 70942, 86302, 100126, 112414, 149278, 172318, 246046, 295198, 344350, 405790, 553246, 626974, 774430, 897310]

cp's OEIS Frontend

A378314 a(n) = number of subsets of {1, 2, ..., n} that represent the first k divisors of m for some positive integers m and 1 <= k <= A000005(m).

Table of values

List of values