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A018116 as a simple table

n a(n)
0 1
1 3
2 5
3 11
4 24
5 54
6 118
7 261
8 576
9 1275
10 2822
11 6246
12 13824
13 30598
14 67724
15 149897
16 331776
17 734342
18 1625364
19 3597522
20 7962624
21 17624185
22 39008732
23 86340517
24 191102976
25 422980417
26 936209560
27 2072172385

[1,3,5,11,24,54,118,261,576,1275,2822,6246,13824,
 30598,67724,149897,331776,734342,1625364,3597522,
 7962624,17624185,39008732,86340517,191102976,
 422980417,936209560,2072172385]

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Last modified December 9 02:53 EST 2021. Contains 349625 sequences. (Running on oeis4.)