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A252761 as a simple table

n a(n)
0 0
1 1
2 6
3 39
4 392
5 4775
6 73920
7 1323441
8 27530298
9 644749920
10 16877063274
11 486936848068
12 15373069624220
13 526779275391863
14 19477946814752586
15 772859962684631760
16 32758854443379036238
17 1477205045259973740909
18 70613293111837146235770
19 3566735926987461858837256 

[0,1,6,39,392,4775,73920,1323441,27530298,
 644749920,16877063274,486936848068,15373069624220,
 526779275391863,19477946814752586,
 772859962684631760,32758854443379036238,
 1477205045259973740909,70613293111837146235770,
 3566735926987461858837256]

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Last modified September 11 04:26 EDT 2024. Contains 375814 sequences. (Running on oeis4.)