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A076906 as a simple table

n a(n)
0 0
1 1
2 2
3 5
4 12
5 31
6 82
7 218
8 612
9 1673
10 4892
11 13672
12 41192
13 117194
14 361302
15 1042970
16 3274712
17 9567393
18 30490688
19 89984282
20 290353456 

[0,1,2,5,12,31,82,218,612,1673,4892,13672,41192,
 117194,361302,1042970,3274712,9567393,30490688,
 89984282,290353456]

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Last modified April 23 05:35 EDT 2024. Contains 371906 sequences. (Running on oeis4.)