n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 33 |
7 | 89 |
8 | 258 |
9 | 756 |
10 | 2279 |
11 | 6957 |
12 | 21592 |
13 | 67689 |
14 | 214451 |
15 | 684850 |
16 | 2203384 |
17 | 7133042 |
18 | 23222003 |
19 | 75971636 |
20 | 249646198 |
21 | 823597534 |
22 | 2726859943 |
23 | 9057797752 |
24 | 30176758016 |
25 | 100810029178 |
26 | 337614951216 |
27 | 1133292965615 |
28 | 3812333876764 |
29 | 12849946139206 |
[0,1,1,2,5,12,33,89,258,756,2279,6957,21592,67689, 214451,684850,2203384,7133042,23222003,75971636, 249646198,823597534,2726859943,9057797752, 30176758016,100810029178,337614951216, 1133292965615,3812333876764,12849946139206] |