A052370 - OEIS

A052370 as a simple table

n	a(n)
0	1
1	1
2	3
3	6
4	16
5	34
6	90
7	182
8	425
9	870
10	1799
11	3323
12	5973
13	9595
14	14570
15	19865
16	25191
17	28706
18	30310
19	28706
20	25191
21	19865
22	14570
23	9595
24	5973
25	3323
26	1799
27	870
28	425
29	182
30	90
31	34
32	16
33	6
34	3
35	1
36	1

[1,1,3,6,16,34,90,182,425,870,1799,3323,5973,9595, 14570,19865,25191,28706,30310,28706,25191,19865, 14570,9595,5973,3323,1799,870,425,182,90,34,16,6, 3,1,1]