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A179277 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 19
5 50
6 158
7 492
8 1635
9 5466
10 18794
11 65332
12 230414
13 820052
14 2945436
15 10654808
16 38795523
17 142045610
18 522694866
19 1931912036
20 7169014298
21 26698782108
22 99756713732
23 373839656616
24 1404795235438
25 5292114330180

[1,1,3,6,19,50,158,492,1635,5466,18794,65332,
 230414,820052,2945436,10654808,38795523,142045610,
 522694866,1931912036,7169014298,26698782108,
 99756713732,373839656616,1404795235438,
 5292114330180]

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Last modified August 20 05:20 EDT 2018. Contains 313909 sequences. (Running on oeis4.)