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A121691 as a simple table

n a(n)
1 1
2 2
3 4
4 10
5 24
6 62
7 158
8 410
9 1064
10 2774
11 7236
12 18908
13 49428
14 129286
15 338254
16 885188
17 2316766
18 6064184
19 15874084
20 41555086
21 108785772
22 284792646
23 745574864
24 1951901064
25 5110072712
26 13378217392
27 35024400076
28 91694660704
29 240059002292

[1,2,4,10,24,62,158,410,1064,2774,7236,18908,
 49428,129286,338254,885188,2316766,6064184,
 15874084,41555086,108785772,284792646,745574864,
 1951901064,5110072712,13378217392,35024400076,
 91694660704,240059002292]

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Last modified August 3 21:19 EDT 2021. Contains 346441 sequences. (Running on oeis4.)