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A250722 as a simple table

n a(n)
1 9
2 46
3 208
4 885
5 3605
6 14437
7 57397
8 228455
9 912438
10 3661515
11 14755226
12 59674645
13 241996099
14 983339540
15 4001469252
16 16299591564
17 66441841973
18 270971703338
19 1105502740041
20 4511347592849
21 18413367334909
22 75165710188419

[9,46,208,885,3605,14437,57397,228455,912438,
 3661515,14755226,59674645,241996099,983339540,
 4001469252,16299591564,66441841973,270971703338,
 1105502740041,4511347592849,18413367334909,
 75165710188419]

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Last modified December 9 11:21 EST 2022. Contains 358700 sequences. (Running on oeis4.)