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A284206 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 362880
10 3265920
11 33022080
12 369774720
13 4536362880
14 60451816320
15 869007242880
16 13397819541120
17 220448163358080
18 3854801333416320
19 71370457471716480
20 1394586705296776320
21 28676809138124407680
22 618948032364173877120

[0,0,0,0,0,0,0,0,362880,3265920,33022080,
 369774720,4536362880,60451816320,869007242880,
 13397819541120,220448163358080,3854801333416320,
 71370457471716480,1394586705296776320,
 28676809138124407680,618948032364173877120]

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Last modified June 10 08:53 EDT 2024. Contains 373259 sequences. (Running on oeis4.)