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A050389 as a simple table

n a(n)
1 1
2 -2
3 6
4 -23
5 102
6 -494
7 2530
8 -13456
9 73539
10 -410282
11 2326674
12 -13371039
13 77697536
14 -455749550
15 2694915548
16 -16047294182
17 96143497559
18 -579147165864
19 3505497238320
20 -21309996083015
21 130048125280624

[1,-2,6,-23,102,-494,2530,-13456,73539,-410282,
 2326674,-13371039,77697536,-455749550,2694915548,
 -16047294182,96143497559,-579147165864,
 3505497238320,-21309996083015,130048125280624]

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Last modified July 19 17:03 EDT 2024. Contains 374410 sequences. (Running on oeis4.)