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A013568 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 7
5 -665
6 219
7 -598
8 11570
9 -5357968
10 995254
11 -4960662
12 126624718
13 -783821598
14 22344623929
15 -166137700653
16 5222279193717
17 -16426560893778654
18 1561364880901471
19 -15643758252397591

[1,0,0,0,7,-665,219,-598,11570,-5357968,995254,
 -4960662,126624718,-783821598,22344623929,
 -166137700653,5222279193717,-16426560893778654,
 1561364880901471,-15643758252397591]

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Last modified July 23 14:44 EDT 2021. Contains 346259 sequences. (Running on oeis4.)