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A212828 as a simple table

n a(n)
1 1
2 2
3 5
4 13
5 44
6 168
7 717
8 3360
9 17091
10 93492
11 545670
12 3372738
13 21911216
14 148486735
15 1041923520
16 7518618028
17 55460237723
18 416078640459
19 3161904730760
20 24261222270154
21 187499556005523
22 1456815538485716
23 11363752138036864

[1,2,5,13,44,168,717,3360,17091,93492,545670,
 3372738,21911216,148486735,1041923520,7518618028,
 55460237723,416078640459,3161904730760,
 24261222270154,187499556005523,1456815538485716,
 11363752138036864]

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Last modified January 18 01:05 EST 2020. Contains 330995 sequences. (Running on oeis4.)