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A348206 as a simple table

n a(n)
1 1
2 -1
3 5
4 -26
5 204
6 -1434
7 16862
8 -166536
9 2377512
10 -29870400
11 558727872
12 -8542202976
13 185546362416
14 -3332732184768
15 82441247589360
16 -1824937537167744
17 50908186083448320
18 -1214743725939310848
19 38998680958184088960
20 -1084067907183602910720
21 36452994894649858339584

[1,-1,5,-26,204,-1434,16862,-166536,2377512,
 -29870400,558727872,-8542202976,185546362416,
 -3332732184768,82441247589360,-1824937537167744,
 50908186083448320,-1214743725939310848,
 38998680958184088960,-1084067907183602910720,
 36452994894649858339584]

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Last modified May 17 12:26 EDT 2024. Contains 372600 sequences. (Running on oeis4.)