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A293743 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 15
5 44
6 129
7 386
8 1185
9 3690
10 11725
11 37578
12 122577
13 402477
14 1340640
15 4490368
16 15219148
17 51825464
18 178235039
19 615461671
20 2143127872
21 7488890027
22 26357539204
23 93050275129
24 330544091758
25 1177338456789
26 4216288462832
27 15134924595039
28 54588972553934

[1,1,2,6,15,44,129,386,1185,3690,11725,37578,
 122577,402477,1340640,4490368,15219148,51825464,
 178235039,615461671,2143127872,7488890027,
 26357539204,93050275129,330544091758,
 1177338456789,4216288462832,15134924595039,
 54588972553934]

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Last modified May 8 05:23 EDT 2021. Contains 343653 sequences. (Running on oeis4.)