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A298843 as a simple table

n a(n)
1 3
2 166
3 424
4 1446
5 5101
6 18191
7 62393
8 214017
9 735090
10 2521128
11 8674496
12 29900417
13 103081768
14 355521461
15 1226654477
16 4233860529
17 14618644242
18 50489092706
19 174414948926
20 602632498696
21 2082528838007
22 7197611462672
23 24879153769164

[3,166,424,1446,5101,18191,62393,214017,735090,
 2521128,8674496,29900417,103081768,355521461,
 1226654477,4233860529,14618644242,50489092706,
 174414948926,602632498696,2082528838007,
 7197611462672,24879153769164]

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Last modified May 27 16:48 EDT 2022. Contains 354110 sequences. (Running on oeis4.)