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A156417 as a simple table

n a(n)
0 1
1 0
2 116760
3 0
4 222925920
5 0
6 10399874310
7 0
8 142353126510
9 0
10 1557290676774
11 0
12 14188463179758
13 0
14 76743963405033
15 0

[1,0,116760,0,222925920,0,10399874310,0,
 142353126510,0,1557290676774,0,14188463179758,0,
 76743963405033,0]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)