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A051339 as a simple table

n a(n)
0 1
1 -7
2 1
3 56
4 -15
5 1
6 -504
7 191
8 -24
9 1
10 5040
11 -2414
12 431
13 -34
14 1
15 -55440
16 31594
17 -7155
18 805
19 -45
20 1
21 665280
22 -434568
23 117454
24 -16815
25 1345
26 -57
27 1
28 -8648640
29 6314664
30 -1961470
31 336049
32 -34300
33 2086
34 -70
35 1
36 121080960
37 -97053936
38 33775244
39 -6666156
40 816249
41 -63504
42 3066
43 -84
44 1

[1,-7,1,56,-15,1,-504,191,-24,1,5040,-2414,431,
 -34,1,-55440,31594,-7155,805,-45,1,665280,-434568,
 117454,-16815,1345,-57,1,-8648640,6314664,
 -1961470,336049,-34300,2086,-70,1,121080960,
 -97053936,33775244,-6666156,816249,-63504,3066,
 -84,1]

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Last modified July 30 03:15 EDT 2014. Contains 245051 sequences.