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A012355 as a simple table

n a(n)
0 0
1 0
2 2
3 -3
4 16
5 -50
6 440
7 -2856
8 30896
9 -291528
10 3518848
11 -41141320
12 556495520
13 -7659162576
14 116623578864
15 -1844238858840
16 31500762034176
17 -562615136891072
18 10696734155925504
19 -212805382639718016
20 4464074777217786112
21 -97816050420003646080

[0,0,2,-3,16,-50,440,-2856,30896,-291528,3518848,
 -41141320,556495520,-7659162576,116623578864,
 -1844238858840,31500762034176,-562615136891072,
 10696734155925504,-212805382639718016,
 4464074777217786112,-97816050420003646080]

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Last modified May 12 03:00 EDT 2024. Contains 372431 sequences. (Running on oeis4.)