A160461 - OEIS

A160461 as a simple table

n	a(n)
0	1
1	2
2	5
3	10
4	20
5	35
6	63
7	105
8	175
9	280
10	444
11	685
12	1050
13	1575
14	2345
15	3439
16	5005
17	7195
18	10275
19	14525
20	20405
21	28428
22	39375
23	54150
24	74080
25	100715
26	136265
27	183365
28	245645
29	327485
30	434810
31	574790
32	756965
33	992950
34	1297940
35	1690500
36	2194642
37	2839695
38	3663225
39	4711160

[1,2,5,10,20,35,63,105,175,280,444,685,1050,1575, 2345,3439,5005,7195,10275,14525,20405,28428,39375, 54150,74080,100715,136265,183365,245645,327485, 434810,574790,756965,992950,1297940,1690500, 2194642,2839695,3663225,4711160]