n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 3 |
7 | 7 |
8 | 17 |
9 | 40 |
10 | 102 |
11 | 249 |
12 | 631 |
13 | 1594 |
14 | 4074 |
15 | 10443 |
16 | 26981 |
17 | 69923 |
18 | 182158 |
19 | 476141 |
20 | 1249237 |
21 | 3287448 |
22 | 8677074 |
23 | 22962118 |
24 | 60915508 |
25 | 161962845 |
26 | 431536102 |
27 | 1152022025 |
28 | 3081015684 |
29 | 8253947104 |
30 | 22147214029 |
31 | 59514474967 |
[0,0,0,0,1,1,3,7,17,40,102,249,631,1594,4074, 10443,26981,69923,182158,476141,1249237,3287448, 8677074,22962118,60915508,161962845,431536102, 1152022025,3081015684,8253947104,22147214029, 59514474967] |