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A271246 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 27
10 0
11 0
12 0
13 64
14 3969
15 0
16 0
17 0
18 76
19 19200
20 900963
21 0
22 0
23 0
24 77
25 33672
26 9523200
27 401227533
28 0
29 0
30 0
31 77
32 38571
33 28240419
34 10151116800
35 378139318893
36 0
37 0
38 0
39 77
40 39210
41 43105569
42 56147799704
43 24976569139200
44 781827640754454
45 0
46 0
47 0
48 77

[0,0,0,0,0,0,0,0,27,0,0,0,64,3969,0,0,0,76,19200,
 900963,0,0,0,77,33672,9523200,401227533,0,0,0,77,
 38571,28240419,10151116800,378139318893,0,0,0,77,
 39210,43105569,56147799704,24976569139200,
 781827640754454,0,0,0,77]

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Last modified October 21 07:53 EDT 2021. Contains 348150 sequences. (Running on oeis4.)