n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 13 |
6 | 31 |
7 | 61 |
8 | 115 |
9 | 232 |
10 | 505 |
11 | 1117 |
12 | 2413 |
13 | 5089 |
14 | 10660 |
15 | 22477 |
16 | 47779 |
17 | 101833 |
18 | 216619 |
19 | 459568 |
20 | 974017 |
21 | 2065465 |
22 | 4383769 |
23 | 9307633 |
24 | 19759108 |
25 | 41934589 |
26 | 88985383 |
27 | 188834389 |
28 | 400758931 |
29 | 850562776 |
30 | 1805202073 |
31 | 3831179989 |
[1,1,1,1,4,13,31,61,115,232,505,1117,2413,5089, 10660,22477,47779,101833,216619,459568,974017, 2065465,4383769,9307633,19759108,41934589, 88985383,188834389,400758931,850562776,1805202073, 3831179989] |