A280909 - OEIS

A280909 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	4
7	5
8	7
9	9
10	12
11	15
12	19
13	24
14	30
15	37
16	47
17	58
18	72
19	87
20	107
21	130
22	158
23	190
24	229
25	275
26	330
27	393
28	469
29	557
30	661
31	780
32	921
33	1084
34	1275
35	1494
36	1750
37	2044
38	2386
39	2777
40	3231
41	3750
42	4348
43	5030
44	5815
45	6711
46	7738
47	8905
48	10240
49	11757
50	13488
51	15449
52	17680

[1,1,1,1,2,3,4,5,7,9,12,15,19,24,30,37,47,58,72, 87,107,130,158,190,229,275,330,393,469,557,661, 780,921,1084,1275,1494,1750,2044,2386,2777,3231, 3750,4348,5030,5815,6711,7738,8905,10240,11757, 13488,15449,17680]