n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 2 |
6 | 3 |
7 | 6 |
8 | 13 |
9 | 26 |
10 | 52 |
11 | 108 |
12 | 226 |
13 | 472 |
14 | 993 |
15 | 2106 |
16 | 4485 |
17 | 9586 |
18 | 20576 |
19 | 44332 |
20 | 95814 |
21 | 207688 |
22 | 451438 |
23 | 983736 |
24 | 2148618 |
25 | 4702976 |
26 | 10314672 |
27 | 22664452 |
28 | 49887084 |
29 | 109985772 |
30 | 242854669 |
31 | 537004218 |
32 | 1189032613 |
33 | 2636096922 |
34 | 5851266616 |
35 | 13002628132 |
36 | 28925389870 |
37 | 64412505472 |
38 | 143576017410 |
[0,0,0,0,1,2,3,6,13,26,52,108,226,472,993,2106, 4485,9586,20576,44332,95814,207688,451438,983736, 2148618,4702976,10314672,22664452,49887084, 109985772,242854669,537004218,1189032613, 2636096922,5851266616,13002628132,28925389870, 64412505472,143576017410] |