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A092687 as a simple table

n a(n)
0 1
1 2
2 6
3 16
4 46
5 132
6 384
7 1120
8 3278
9 9612
10 28236
11 83072
12 244752
13 722048
14 2132704
15 6306304
16 18666190
17 55300732
18 163968612
19 486528288
20 1444571068
21 4291629384
22 12756459936
23 37934818112
24 112855778768
25 335867740704
26 999895548736

[1,2,6,16,46,132,384,1120,3278,9612,28236,83072,
 244752,722048,2132704,6306304,18666190,55300732,
 163968612,486528288,1444571068,4291629384,
 12756459936,37934818112,112855778768,335867740704,
 999895548736]

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Last modified December 12 20:12 EST 2019. Contains 329961 sequences. (Running on oeis4.)