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A152480 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 6
7 36
8 648
9 49248
10 25214976
11 160821116928
12 27931733230288896
13 356677116520963546939392
14 1187172652051836115416531874086912
15 5150511748819234946137723863013776583789903872

[1,1,1,1,2,6,36,648,49248,25214976,160821116928,
 27931733230288896,356677116520963546939392,
 1187172652051836115416531874086912,
 5150511748819234946137723863013776583789903872]

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Last modified September 26 12:04 EDT 2021. Contains 347665 sequences. (Running on oeis4.)