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A136455 as a simple table

n a(n)
1 1
2 0
3 1
4 -1
5 1
6 1
7 -48
8 28
9 25
10 -1
11 233280
12 -91368
13 -60993
14 2305
15 1
16 222953472000
17 -65503641600
18 -33198846720
19 985867696
20 446161
21 -1
22 -69132994560000000000
23 16249035196800000000
24 6593300559405000000
25 -157196644177875000
26 -59060479175425
27 144069601
28 1

[1,0,1,-1,1,1,-48,28,25,-1,233280,-91368,-60993,
 2305,1,222953472000,-65503641600,-33198846720,
 985867696,446161,-1,-69132994560000000000,
 16249035196800000000,6593300559405000000,
 -157196644177875000,-59060479175425,144069601,1]

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Last modified October 24 10:03 EDT 2021. Contains 348225 sequences. (Running on oeis4.)