A242707 - OEIS

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A242707 as a simple table

n	a(n)
1	4
2	0
3	0
4	0
5	12
6	4
7	5032
8	6
9	2990
10	329881
11	6
12	10
13	1720
14	9
15	6
16	4
17	56
18	5
19	634
20	18
21	68
22	12
23	51848
24	22
25	124
26	1671
27	12
28	6
29	30
30	28
31	756
32	30

[4,0,0,0,12,4,5032,6,2990,329881,6,10,1720,9,6,4, 56,5,634,18,68,12,51848,22,124,1671,12,6,30,28, 756,30]