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A013430 as a simple table

n a(n)
0 1
1 0
2 0
3 -1
4 0
5 -15
6 10
7 -495
8 840
9 -29575
10 87750
11 -2805075
12 12340900
13 -387547875
14 2304422250
15 -73485787375
16 556725078000
17 -18311017515375
18 169707184396750
19 -5801182757296875
20 63859173696337500

[1,0,0,-1,0,-15,10,-495,840,-29575,87750,-2805075,
 12340900,-387547875,2304422250,-73485787375,
 556725078000,-18311017515375,169707184396750,
 -5801182757296875,63859173696337500]

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Last modified January 22 23:50 EST 2022. Contains 350504 sequences. (Running on oeis4.)