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A298988 as a simple table

n a(n)
0 1
1 -1
2 0
3 -18
4 208
5 -2400
6 36504
7 -663754
8 13808320
9 -324176418
10 8487126400
11 -245122390601
12 7741417124880
13 -265402847130421
14 9816338228638872
15 -389618889514254225
16 16518399076342421248
17 -745025763154442071130
18 35619835529954597786208
19 -1799459812004380374518790
20 95780758238408017088795600

[1,-1,0,-18,208,-2400,36504,-663754,13808320,
 -324176418,8487126400,-245122390601,7741417124880,
 -265402847130421,9816338228638872,
 -389618889514254225,16518399076342421248,
 -745025763154442071130,35619835529954597786208,
 -1799459812004380374518790,
 95780758238408017088795600]

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Last modified December 7 05:14 EST 2019. Contains 329839 sequences. (Running on oeis4.)