A271661 - OEIS

A271661 as a simple table

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	7
6	9
7	13
8	18
9	24
10	32
11	42
12	55
13	71
14	91
15	116
16	147
17	185
18	231
19	288
20	357
21	440
22	540
23	661
24	807
25	980
26	1186
27	1432
28	1724
29	2069
30	2476
31	2956
32	3521
33	4183
34	4958
35	5865
36	6923
37	8155
38	9587
39	11251
40	13180
41	15411
42	17990
43	20967
44	24399
45	28348
46	32886
47	38098
48	44075

[1,1,2,3,5,7,9,13,18,24,32,42,55,71,91,116,147, 185,231,288,357,440,540,661,807,980,1186,1432, 1724,2069,2476,2956,3521,4183,4958,5865,6923,8155, 9587,11251,13180,15411,17990,20967,24399,28348, 32886,38098,44075]