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A209452 as a simple table

n a(n)
0 1
1 -6
2 24
3 -30
4 -72
5 0
6 840
7 -2028
8 4896
9 -5910
10 0
11 0
12 -83160
13 -401532
14 1938768
15 0
16 -2824992
17 0
18 32930520
19 -79501308
20 0
21 -463367580
22 0
23 0
24 6520076640
25 -7870428726
26 76003583088
27 -45872220270
28 -221490672624
29 0
30 0
31 -3116610274188
32 7524162792576
33 0
34 0
35 0
36 -127800022137480

[1,-6,24,-30,-72,0,840,-2028,4896,-5910,0,0,
 -83160,-401532,1938768,0,-2824992,0,32930520,
 -79501308,0,-463367580,0,0,6520076640,-7870428726,
 76003583088,-45872220270,-221490672624,0,0,
 -3116610274188,7524162792576,0,0,0,
 -127800022137480]

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Last modified June 22 21:29 EDT 2021. Contains 345393 sequences. (Running on oeis4.)