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A063254 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 31
6 114
7 427
8 1976
9 9274
10 51910
11 293737
12 1932127
13 12817663
14 96956262
15 738397480
16 6316672363
17 54335102605

[1,2,4,11,31,114,427,1976,9274,51910,293737,
 1932127,12817663,96956262,738397480,6316672363,
 54335102605]

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Last modified October 14 06:54 EDT 2019. Contains 327995 sequences. (Running on oeis4.)