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A013279 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 3
5 -30
6 180
7 -945
8 7245
9 -79380
10 822150
11 -7952175
12 92151675
13 -1325674350
14 19070251200
15 -264982843125
16 4134370865625
17 -74940979113000
18 1376877670418250
19 -24833523534694875
20 487380405271134375

[1,0,0,0,3,-30,180,-945,7245,-79380,822150,
 -7952175,92151675,-1325674350,19070251200,
 -264982843125,4134370865625,-74940979113000,
 1376877670418250,-24833523534694875,
 487380405271134375]

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Last modified July 22 19:00 EDT 2024. Contains 374540 sequences. (Running on oeis4.)