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A177379 as a simple table

n a(n)
0 1
1 1
2 4
3 27
4 260
5 3270
6 50904
7 946134
8 20462896
9 505137312
10 14020517520
11 432340670520
12 14667108820704
13 542979374426736
14 21784934875431168
15 941691211940974320
16 43634507604383543040
17 2157698329617806488320

[1,1,4,27,260,3270,50904,946134,20462896,
 505137312,14020517520,432340670520,14667108820704,
 542979374426736,21784934875431168,
 941691211940974320,43634507604383543040,
 2157698329617806488320]

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Last modified April 22 10:58 EDT 2021. Contains 343174 sequences. (Running on oeis4.)