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A254533 as a simple table

n a(n)
1 2
2 3
3 8
4 20
5 50
6 126
7 329
8 956
9 2897
10 8341
11 23238
12 66544
13 194686
14 555838
15 1532445
16 4225095
17 12140873
18 36623429
19 112964359
20 345148105
21 1027400959
22 2988415841
23 8604041257
24 24715209608
25 70743541258
26 201532200098
27 575286723544

[2,3,8,20,50,126,329,956,2897,8341,23238,66544,
 194686,555838,1532445,4225095,12140873,36623429,
 112964359,345148105,1027400959,2988415841,
 8604041257,24715209608,70743541258,201532200098,
 575286723544]

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Last modified May 23 15:54 EDT 2022. Contains 353976 sequences. (Running on oeis4.)