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A027149 as a simple table

n a(n)
2 1
3 10
4 42
5 352
6 1360
7 11616
8 43680
9 381952
10 1416960
11 12620800
12 46441472
13 419512320
14 1535352832
15 14021353472
16 51117465600
17 470886645760
18 1711716106240
19 15879295991808
20 57592095965184
21 537381547540480
22 1945481074704384

[1,10,42,352,1360,11616,43680,381952,1416960,
 12620800,46441472,419512320,1535352832,
 14021353472,51117465600,470886645760,
 1711716106240,15879295991808,57592095965184,
 537381547540480,1945481074704384]

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Last modified June 22 23:47 EDT 2024. Contains 373629 sequences. (Running on oeis4.)