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A223940 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 16
5 31
6 61
7 117
8 228
9 436
10 845
11 1615
12 3120
13 5965
14 11501
15 22001
16 42365
17 81091
18 156010
19 298777
20 574450
21 1100620
22 2115150
23 4053959
24 7788126
25 14931102
26 28676899
27 54990202
28 105594073
29 202519004
30 388825095
31 745825185
32 1431776536
33 2746639052

[1,2,4,8,16,31,61,117,228,436,845,1615,3120,5965,
 11501,22001,42365,81091,156010,298777,574450,
 1100620,2115150,4053959,7788126,14931102,28676899,
 54990202,105594073,202519004,388825095,745825185,
 1431776536,2746639052]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)