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A266431 as a simple table

n a(n)
1 6
2 34
3 212
4 1391
5 8764
6 49894
7 251381
8 1122721
9 4490732
10 16284683
11 54165714
12 166968275
13 481237398
14 1306708520
15 3364174219
16 8257222586
17 19412425379
18 43890267973
19 95767324137
20 202278568268
21 414691101885
22 827108931171

[6,34,212,1391,8764,49894,251381,1122721,4490732,
 16284683,54165714,166968275,481237398,1306708520,
 3364174219,8257222586,19412425379,43890267973,
 95767324137,202278568268,414691101885,
 827108931171]

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Last modified December 10 12:10 EST 2023. Contains 367710 sequences. (Running on oeis4.)