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A090531 as a simple table

n a(n)
1 4
2 4
3 6
4 72
5 240
6 12240
7 35280
8 241920
9 1088640
10 50803200
11 1157587200
12 14370048000
13 298896998400
14 2353813862400
15 11769069312000
16 502146957312000
17 4268249137152000
18 621030249455616000
19 9488317831888896000

[4,4,6,72,240,12240,35280,241920,1088640,50803200,
 1157587200,14370048000,298896998400,2353813862400,
 11769069312000,502146957312000,4268249137152000,
 621030249455616000,9488317831888896000]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)