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A047660 as a simple table

n a(n)
1 1
2 1
3 0
4 1
5 2
6 40
7 0
8 703760
9 131328
10 300241541128192
11 0
12 28170013344558609991874248704
13 24595658799308603392
14 9502080486519653717758562294813775233459455787008
15 0

[1,1,0,1,2,40,0,703760,131328,300241541128192,0,
 28170013344558609991874248704,
 24595658799308603392,
 9502080486519653717758562294813775233459455787008,
 0]

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Last modified April 19 02:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)