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A272497 as a simple table

n a(n)
7 1
8 8
9 108
10 1200
11 15510
12 194832
13 2749032
14 39402792
15 614555370
16 9964468800
17 172686804576
18 3129181488576
19 60039964804248
20 1204868044448640
21 25426155055055040
22 560350692475352064
23 12919636322380914984
24 310342487192287684992
25 7768115419959585662400

[1,8,108,1200,15510,194832,2749032,39402792,
 614555370,9964468800,172686804576,3129181488576,
 60039964804248,1204868044448640,25426155055055040,
 560350692475352064,12919636322380914984,
 310342487192287684992,7768115419959585662400]

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Last modified September 24 11:06 EDT 2022. Contains 356932 sequences. (Running on oeis4.)