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A221944 as a simple table

n a(n)
0 1
1 2
2 4
3 7
4 12
5 22
6 38
7 66
8 114
9 198
10 343
11 595
12 1030
13 1785
14 3092
15 5357
16 9278
17 16071
18 27835
19 48213
20 83507
21 144639
22 250523
23 433919
24 751571
25 1301759
26 2254713
27 3905277
28 6764139
29 11715833
30 20292418
31 35147500
32 60877256
33 105442501
34 182631769
35 316327504
36 547895309
37 948982513
38 1643685929
39 2846947541
40 4931057788

[1,2,4,7,12,22,38,66,114,198,343,595,1030,1785,
 3092,5357,9278,16071,27835,48213,83507,144639,
 250523,433919,751571,1301759,2254713,3905277,
 6764139,11715833,20292418,35147500,60877256,
 105442501,182631769,316327504,547895309,948982513,
 1643685929,2846947541,4931057788]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)