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A081661 as a simple table

n a(n)
0 1
1 3
2 8
3 16
4 31
5 57
6 106
7 198
8 377
9 727
10 1420
11 2796
12 5539
13 11013
14 21950
15 43810
16 87517
17 174915
18 349696
19 699240
20 1398311
21 2796433
22 5592658
23 11185086
24 22369921
25 44739567
26 89478836
27 178957348
28 357914347
29 715828317
30 1431656230
31 2863312026

[1,3,8,16,31,57,106,198,377,727,1420,2796,5539,
 11013,21950,43810,87517,174915,349696,699240,
 1398311,2796433,5592658,11185086,22369921,
 44739567,89478836,178957348,357914347,715828317,
 1431656230,2863312026]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)