A000009 - OEIS

A000009 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	3
6	4
7	5
8	6
9	8
10	10
11	12
12	15
13	18
14	22
15	27
16	32
17	38
18	46
19	54
20	64
21	76
22	89
23	104
24	122
25	142
26	165
27	192
28	222
29	256
30	296
31	340
32	390
33	448
34	512
35	585
36	668
37	760
38	864
39	982
40	1113
41	1260
42	1426
43	1610
44	1816
45	2048
46	2304
47	2590
48	2910
49	3264
50	3658
51	4097
52	4582
53	5120
54	5718
55	6378

[1,1,1,2,2,3,4,5,6,8,10,12,15,18,22,27,32,38,46, 54,64,76,89,104,122,142,165,192,222,256,296,340, 390,448,512,585,668,760,864,982,1113,1260,1426, 1610,1816,2048,2304,2590,2910,3264,3658,4097,4582, 5120,5718,6378]

[1,1,1,2,2,3,4,5,6,8,10,12,15,18,22,27,32,38,46,
 54,64,76,89,104,122,142,165,192,222,256,296,340,
 390,448,512,585,668,760,864,982,1113,1260,1426,
 1610,1816,2048,2304,2590,2910,3264,3658,4097,4582,
 5120,5718,6378]