A052326 - OEIS

A052326 as a simple table

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	2
13	6
14	11
15	25
16	49
17	105
18	211
19	444
20	903
21	1880
22	3865
23	8042
24	16658
25	34764
26	72484
27	151856
28	318418
29	669934
30	1411637
31	2982407
32	6311760
33	13387127
34	28442458
35	60543586
36	129084965
37	275683061
38	589660911
39	1263128375

[1,1,0,0,0,0,0,0,0,0,0,1,2,6,11,25,49,105,211,444, 903,1880,3865,8042,16658,34764,72484,151856, 318418,669934,1411637,2982407,6311760,13387127, 28442458,60543586,129084965,275683061,589660911, 1263128375]