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A104983 as a simple table

n a(n)
0 1
1 2
2 6
3 24
4 122
5 750
6 5376
7 43856
8 400518
9 4046334
10 44808104
11 539850984
12 7032370302
13 98516491214
14 1477264979352
15 23612920280976
16 400847064718166
17 7202901369491694
18 136596819590256984
19 2726503675380494408 

[1,2,6,24,122,750,5376,43856,400518,4046334,
 44808104,539850984,7032370302,98516491214,
 1477264979352,23612920280976,400847064718166,
 7202901369491694,136596819590256984,
 2726503675380494408]

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Last modified June 12 15:44 EDT 2024. Contains 373332 sequences. (Running on oeis4.)