n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 9 |
6 | 21 |
7 | 44 |
8 | 103 |
9 | 232 |
10 | 571 |
11 | 1368 |
12 | 3441 |
13 | 8653 |
14 | 22263 |
15 | 57518 |
16 | 150733 |
17 | 396937 |
18 | 1054540 |
19 | 2815453 |
20 | 7562159 |
21 | 20399714 |
22 | 55280532 |
23 | 150356806 |
24 | 410432671 |
25 | 1123902587 |
26 | 3086827578 |
27 | 8500975970 |
28 | 23470712241 |
29 | 64952794778 |
30 | 180144093389 |
[0,1,2,5,9,21,44,103,232,571,1368,3441,8653,22263, 57518,150733,396937,1054540,2815453,7562159, 20399714,55280532,150356806,410432671,1123902587, 3086827578,8500975970,23470712241,64952794778, 180144093389] |