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A217093 as a simple table

n a(n)
0 1
1 3
2 12
3 38
4 117
5 330
6 906
7 2367
8 6027
9 14873
10 35892
11 84657
12 196018
13 445746
14 997962
15 2201438
16 4792005
17 10300950
18 21889368
19 46012119
20 95746284
21 197344937
22 403121547
23 816501180
24 1640549317
25 3271188702
26 6475456896
27 12730032791
28 24861111315
29 48246729411
30 93065426256

[1,3,12,38,117,330,906,2367,6027,14873,35892,
 84657,196018,445746,997962,2201438,4792005,
 10300950,21889368,46012119,95746284,197344937,
 403121547,816501180,1640549317,3271188702,
 6475456896,12730032791,24861111315,48246729411,
 93065426256]

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Last modified August 10 22:22 EDT 2020. Contains 336403 sequences. (Running on oeis4.)