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A153731 as a simple table

n a(n)
1 -2
2 1
3 1
4 -10
5 1
6 576
7 -960
8 352
9 -40
10 1
11 46225
12 -5596840
13 13950764
14 -7453176
15 1513334
16 -141912
17 6476
18 -136
19 1
20 2000989041197056
21 -44660812492570624
22 183876928237731840
23 -255690851718529024
24 172580952324702208

[-2,1,1,-10,1,576,-960,352,-40,1,46225,-5596840,
 13950764,-7453176,1513334,-141912,6476,-136,1,
 2000989041197056,-44660812492570624,
 183876928237731840,-255690851718529024,
 172580952324702208]

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Last modified May 26 23:16 EDT 2018. Contains 304689 sequences. (Running on oeis4.)