A171628 - OEIS

A171628 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	3
6	3
7	3
8	4
9	6
10	8
11	11
12	15
13	19
14	22
15	25
16	30
17	37
18	47
19	62
20	83
21	108
22	136
23	168
24	205
25	247
26	295
27	354
28	429
29	524
30	642
31	789
32	972
33	1196
34	1466
35	1789
36	2173
37	2625
38	3155
39	3778
40	4515
41	5391
42	6437
43	7692
44	9201
45	11014
46	13186
47	15780
48	18865
49	22516
50	26818
51	31871
52	37791

[1,1,1,2,3,3,3,4,6,8,11,15,19,22,25,30,37,47,62, 83,108,136,168,205,247,295,354,429,524,642,789, 972,1196,1466,1789,2173,2625,3155,3778,4515,5391, 6437,7692,9201,11014,13186,15780,18865,22516, 26818,31871,37791]