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A236408 as a simple table

n a(n)
1 1
2 1
3 3
4 9
5 33
6 131
7 561
8 2535
9 11971
10 58579
11 295297
12 1526427
13 8061879
14 43380351
15 237266225
16 1316536991
17 7399318871
18 42065753191
19 241628448517
20 1400957386207

[1,1,3,9,33,131,561,2535,11971,58579,295297,
 1526427,8061879,43380351,237266225,1316536991,
 7399318871,42065753191,241628448517,1400957386207]

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Last modified July 27 08:33 EDT 2021. Contains 346304 sequences. (Running on oeis4.)