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A159606 as a simple table

n a(n)
0 1
1 1
2 -3
3 16
4 -115
5 996
6 -9870
7 108816
8 -1312227
9 17116900
10 -239641798
11 3580451040
12 -56837970358
13 955277226736
14 -16948413979080
15 316615678469856
16 -6213840704926947
17 127857371413743540
18 -2753054722318717950

[1,1,-3,16,-115,996,-9870,108816,-1312227,
 17116900,-239641798,3580451040,-56837970358,
 955277226736,-16948413979080,316615678469856,
 -6213840704926947,127857371413743540,
 -2753054722318717950]

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Last modified November 26 09:38 EST 2020. Contains 338639 sequences. (Running on oeis4.)