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A061417 as a simple table

n a(n)
1 1
2 2
3 4
4 10
5 28
6 136
7 726
8 5100
9 40362
10 363288
11 3628810
12 39921044
13 479001612
14 6227066928
15 87178295296
16 1307675013928
17 20922789888016
18 355687438476444
19 6402373705728018
20 121645100594641896
21 2432902008177690360
22 51090942175425331320
23 1124000727777607680022

[1,2,4,10,28,136,726,5100,40362,363288,3628810,
 39921044,479001612,6227066928,87178295296,
 1307675013928,20922789888016,355687438476444,
 6402373705728018,121645100594641896,
 2432902008177690360,51090942175425331320,
 1124000727777607680022]

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Last modified April 25 09:38 EDT 2024. Contains 371967 sequences. (Running on oeis4.)