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A100225 as a simple table

n a(n)
0 1
1 1
2 2
3 0
4 -4
5 0
6 16
7 0
8 -80
9 0
10 448
11 0
12 -2688
13 0
14 16896
15 0
16 -109824
17 0
18 732160
19 0
20 -4978688
21 0
22 34398208
23 0
24 -240787456
25 0
26 1704034304
27 0
28 -12171673600
29 0
30 87636049920
31 0
32 -635361361920
33 0
34 4634400522240
35 0
36 -33985603829760
37 0
38 250420238745600
39 0
40 -1853109766717440

[1,1,2,0,-4,0,16,0,-80,0,448,0,-2688,0,16896,0,
 -109824,0,732160,0,-4978688,0,34398208,0,
 -240787456,0,1704034304,0,-12171673600,0,
 87636049920,0,-635361361920,0,4634400522240,0,
 -33985603829760,0,250420238745600,0,
 -1853109766717440]

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)