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A245108 as a simple table

n a(n)
0 1
1 2
2 5
3 17
4 89
5 556
6 3982
7 31177
8 261069
9 2309922
10 21435122
11 207605687
12 2091924418
13 21883241424
14 237301377573
15 2664817940085
16 30965904565393
17 372114924929070
18 4621600351308022
19 59287502088944355
20 785045224973677569
21 10721533799643490991
22 150898539708638128793
23 2186680325880161158424

[1,2,5,17,89,556,3982,31177,261069,2309922,
 21435122,207605687,2091924418,21883241424,
 237301377573,2664817940085,30965904565393,
 372114924929070,4621600351308022,
 59287502088944355,785045224973677569,
 10721533799643490991,150898539708638128793,
 2186680325880161158424]

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Last modified May 23 00:47 EDT 2022. Contains 353959 sequences. (Running on oeis4.)