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A242117 as a simple table

n a(n)
1 0
2 0
3 3
4 24
5 1680
6 5317635
7 66314914699608
8 8947678119828215014722891024
9 178098260698995011212395018312912894502905113202338936835

[0,0,3,24,1680,5317635,66314914699608,
 8947678119828215014722891024,
 17809826069899501121239501831291289450290511320233\
 8936835]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)