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A013070 as a simple table

n a(n)
0 0
1 2
2 -1
3 -7
4 18
5 -5
6 135
7 -2510
8 13300
9 -22895
10 456075
11 -10766650
12 86950050
13 -224989375
14 6482478275
15 -213120778000
16 2265017781000
17 -5257017140375
18 268111942824375
19 -12649162007056250
20 161640657722878750

[0,2,-1,-7,18,-5,135,-2510,13300,-22895,456075,
 -10766650,86950050,-224989375,6482478275,
 -213120778000,2265017781000,-5257017140375,
 268111942824375,-12649162007056250,
 161640657722878750]

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Last modified May 28 04:00 EDT 2020. Contains 334671 sequences. (Running on oeis4.)