A018048 - OEIS

A018048 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	2
7	3
8	4
9	4
10	5
11	6
12	8
13	9
14	11
15	13
16	16
17	19
18	22
19	26
20	32
21	38
22	45
23	53
24	64
25	76
26	90
27	107
28	128
29	152
30	181
31	215
32	256
33	304
34	362
35	430
36	512
37	608
38	724
39	861
40	1024
41	1217
42	1448
43	1722
44	2048
45	2435
46	2896
47	3444
48	4096
49	4870

[1,1,1,1,2,2,2,3,4,4,5,6,8,9,11,13,16,19,22,26,32, 38,45,53,64,76,90,107,128,152,181,215,256,304,362, 430,512,608,724,861,1024,1217,1448,1722,2048,2435, 2896,3444,4096,4870]