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A060557 as a simple table

n a(n)
0 1
1 3
2 10
3 33
4 108
5 352
6 1145
7 3721
8 12087
9 39254
10 127469
11 413908
12 1343980
13 4363921
14 14169633
15 46008619
16 149389218
17 485064009
18 1574993356
19 5113971944
20 16604963593
21 53915979657
22 175064088671

[1,3,10,33,108,352,1145,3721,12087,39254,127469,
 413908,1343980,4363921,14169633,46008619,
 149389218,485064009,1574993356,5113971944,
 16604963593,53915979657,175064088671]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)