A190071 - OEIS

A190071 as a simple table

n	a(n)
1	0
2	2
3	4
4	6
5	12
6	0
7	12
8	36
9	40
10	12
11	20
12	76
13	166
14	144
15	0
16	30
17	143
18	483
19	922
20	550
21	40
22	42
23	233
24	1126
25	3481
26	5136
27	1896
28	0
29	56
30	366
31	2276
32	9904
33	25306
34	28656
35	7584
36	140
37	72
38	536
39	4150
40	23400
41	88509
42	191456
43	162028
44	27328
45	0
46	90
47	760
48	6946
49	48491
50	249119
51	834717

[0,2,4,6,12,0,12,36,40,12,20,76,166,144,0,30,143, 483,922,550,40,42,233,1126,3481,5136,1896,0,56, 366,2276,9904,25306,28656,7584,140,72,536,4150, 23400,88509,191456,162028,27328,0,90,760,6946, 48491,249119,834717]