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A156185 as a simple table

n a(n)
0 1
1 -1
2 -6
3 37
4 186
5 -961
6 -14166
7 410189
8 2009946
9 -18708871
10 -458225526
11 10426234927
12 153212718906
13 -2059985998981
14 -70632832168086
15 8766253488312013
16 42939614599671066
17 -754976143412185291
18 -33282798350926545846
19 1308065815531646653417

[1,-1,-6,37,186,-961,-14166,410189,2009946,
 -18708871,-458225526,10426234927,153212718906,
 -2059985998981,-70632832168086,8766253488312013,
 42939614599671066,-754976143412185291,
 -33282798350926545846,1308065815531646653417]

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Last modified April 14 12:11 EDT 2021. Contains 342949 sequences. (Running on oeis4.)