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A009019 as a simple table

n a(n)
0 1
1 0
2 -1
3 3
4 -6
5 10
6 -6
7 -77
8 724
9 -5220
10 36364
11 -259457
12 1933704
13 -15161250
14 125278984
15 -1090268137
16 9973751184
17 -95650827080
18 958577301104
19 -10001308630117
20 108164953941664
21 -1206196891901710
22 13774788612312224

[1,0,-1,3,-6,10,-6,-77,724,-5220,36364,-259457,
 1933704,-15161250,125278984,-1090268137,
 9973751184,-95650827080,958577301104,
 -10001308630117,108164953941664,-1206196891901710,
 13774788612312224]

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Last modified May 4 19:41 EDT 2024. Contains 372257 sequences. (Running on oeis4.)