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A256116 as a simple table

n a(n)
0 1
1 0
2 1
3 0
4 1
5 2
6 0
7 1
8 9
9 10
10 0
11 1
12 34
13 112
14 84
15 0
16 1
17 125
18 930
19 1800
20 1008
21 0
22 1
23 461
24 7018
25 26400
26 35640
27 15840
28 0
29 1
30 1715
31 51142
32 334152
33 816816
34 840840
35 308880
36 0
37 1
38 6434
39 368464
40 3944220
41 15550080
42 27824160
43 23063040
44 7207200

[1,0,1,0,1,2,0,1,9,10,0,1,34,112,84,0,1,125,930,
 1800,1008,0,1,461,7018,26400,35640,15840,0,1,1715,
 51142,334152,816816,840840,308880,0,1,6434,368464,
 3944220,15550080,27824160,23063040,7207200]

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Last modified April 14 18:03 EDT 2021. Contains 342950 sequences. (Running on oeis4.)