A173091 - OEIS

A173091 as a simple table

n	a(n)
1	2
2	2
3	3
4	3
5	4
6	4
7	6
8	6
9	9
10	9
11	13
12	14
13	19
14	22
15	29
16	34
17	44
18	53
19	68
20	82
21	105
22	128
23	162
24	199
25	251
26	309
27	389
28	481
29	604
30	748
31	938
32	1164
33	1457
34	1811
35	2264
36	2817
37	3519
38	4381
39	5470
40	6813
41	8504
42	10595
43	13221
44	16476
45	20556
46	25621
47	31961
48	39841
49	49695
50	61953
51	77270
52	96337

[2,2,3,3,4,4,6,6,9,9,13,14,19,22,29,34,44,53,68, 82,105,128,162,199,251,309,389,481,604,748,938, 1164,1457,1811,2264,2817,3519,4381,5470,6813,8504, 10595,13221,16476,20556,25621,31961,39841,49695, 61953,77270,96337]