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A283047 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 20
5 40
6 84
7 184
8 292
9 584
10 1172
11 2360
12 4644
13 9544
14 19092
15 38200
16 77348
17 149832
18 299668
19 599352
20 1199652
21 2394440
22 4805268
23 9626936
24 19172900
25 38357320
26 76714644
27 153429304
28 306859556
29 613714248
30 1227444884
31 2454971704
32 4909665828
33 9820064072

[1,2,4,8,20,40,84,184,292,584,1172,2360,4644,9544,
 19092,38200,77348,149832,299668,599352,1199652,
 2394440,4805268,9626936,19172900,38357320,
 76714644,153429304,306859556,613714248,1227444884,
 2454971704,4909665828,9820064072]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)