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A289920 as a simple table

n a(n)
0 1
1 2
2 3
3 6
4 12
5 22
6 42
7 80
8 151
9 287
10 544
11 1031
12 1956
13 3708
14 7031
15 13333
16 25280
17 47936
18 90895
19 172350
20 326806
21 619677
22 1175008
23 2228011
24 4224672
25 8010672
26 15189552
27 28801880
28 54613096
29 103555397
30 196358029
31 372327066
32 705993241
33 1338679088
34 2538355336

[1,2,3,6,12,22,42,80,151,287,544,1031,1956,3708,
 7031,13333,25280,47936,90895,172350,326806,619677,
 1175008,2228011,4224672,8010672,15189552,28801880,
 54613096,103555397,196358029,372327066,705993241,
 1338679088,2538355336]

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Last modified March 28 13:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)