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A213906 as a simple table

n a(n)
2 1
3 1
4 2
5 3
6 7
7 14
8 36
9 85
10 226
11 577
12 1561
13 4158
14 11413
15 31200
16 86722
17 241227
18 677729
19 1908832
20 5411431
21 15386107
22 43949347
23 125896209
24 361904137
25 1043032250
26 3014490719
27 8732211825
28 25353395331
29 73759912892
30 215007439768
31 627844428958
32 1836466543942

[1,1,2,3,7,14,36,85,226,577,1561,4158,11413,31200,
 86722,241227,677729,1908832,5411431,15386107,
 43949347,125896209,361904137,1043032250,
 3014490719,8732211825,25353395331,73759912892,
 215007439768,627844428958,1836466543942]

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Last modified July 11 21:16 EDT 2020. Contains 335652 sequences. (Running on oeis4.)