A390040 - OEIS

A390040 as a simple table

n	a(n)
0	1
1	0
2	4
3	0
4	10
5	0
6	20
7	0
8	35
9	1
10	56
11	8
12	84
13	36
14	120
15	120
16	165
17	330
18	221
19	792
20	298
21	1716
22	442
23	3432
24	819
25	6435
26	1925
27	11441
28	5048
29	19464
30	13192
31	31960
32	32793
33	51204
34	76722
35	81396
36	169291
37	131784
38	354276
39	224808
40	707413
41	415701
42	1355642
43	836418
44	2507299

[1,0,4,0,10,0,20,0,35,1,56,8,84,36,120,120,165, 330,221,792,298,1716,442,3432,819,6435,1925,11441, 5048,19464,13192,31960,32793,51204,76722,81396, 169291,131784,354276,224808,707413,415701,1355642, 836418,2507299]