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A166963 as a simple table

n a(n)
0 1
1 2
2 6
3 12
4 27
5 61
6 138
7 309
8 694
9 1560
10 3506
11 7877
12 17699
13 39770
14 89363
15 200796
16 451184
17 1013802
18 2277993
19 5118603
20 11501396
21 25843403
22 58069600
23 130481206
24 293188608
25 658788823
26 1480285049

[1,2,6,12,27,61,138,309,694,1560,3506,7877,17699,
 39770,89363,200796,451184,1013802,2277993,5118603,
 11501396,25843403,58069600,130481206,293188608,
 658788823,1480285049]

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Last modified September 22 09:47 EDT 2021. Contains 347606 sequences. (Running on oeis4.)