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A151098 as a simple table

n a(n)
0 1
1 3
2 11
3 43
4 180
5 779
6 3451
7 15540
8 70890
9 326746
10 1518313
11 7102702
12 33411343
13 157912141
14 749357484
15 3568438872
16 17044813008
17 81634173640
18 391911036313
19 1885504214950
20 9088637547932
21 43885500213236
22 212239044292038
23 1027901835175024
24 4984800111721564
25 24202918927594738
26 117644341861522563

[1,3,11,43,180,779,3451,15540,70890,326746,
 1518313,7102702,33411343,157912141,749357484,
 3568438872,17044813008,81634173640,391911036313,
 1885504214950,9088637547932,43885500213236,
 212239044292038,1027901835175024,4984800111721564,
 24202918927594738,117644341861522563]

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Last modified June 15 16:55 EDT 2024. Contains 373410 sequences. (Running on oeis4.)