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A012473 as a simple table

n a(n)
0 1
1 0
2 -1
3 3
4 6
5 -60
6 0
7 2310
8 -10752
9 -84168
10 1152240
11 2453880
12 -154467192
13 797768400
14 16907851688
15 -250017997320
16 -1746679208128
17 77446551835648
18 -318565680255360
19 -18241668233387712
20 262053618149070080

[1,0,-1,3,6,-60,0,2310,-10752,-84168,1152240,
 2453880,-154467192,797768400,16907851688,
 -250017997320,-1746679208128,77446551835648,
 -318565680255360,-18241668233387712,
 262053618149070080]

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Last modified January 23 04:16 EST 2020. Contains 331168 sequences. (Running on oeis4.)