n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 7 |
8 | 13 |
9 | 24 |
10 | 42 |
11 | 76 |
12 | 137 |
13 | 245 |
14 | 441 |
15 | 792 |
16 | 1420 |
17 | 2550 |
18 | 4576 |
19 | 8209 |
20 | 14732 |
21 | 26433 |
22 | 47424 |
23 | 85092 |
24 | 152670 |
25 | 273914 |
26 | 491453 |
27 | 881744 |
28 | 1581985 |
29 | 2838333 |
30 | 5092398 |
31 | 9136528 |
32 | 16392311 |
33 | 29410243 |
34 | 52766343 |
35 | 94670652 |
36 | 169853138 |
37 | 304741614 |
38 | 546751437 |
39 | 980952673 |
40 | 1759973660 |
[0,0,1,1,2,4,7,13,24,42,76,137,245,441,792,1420, 2550,4576,8209,14732,26433,47424,85092,152670, 273914,491453,881744,1581985,2838333,5092398, 9136528,16392311,29410243,52766343,94670652, 169853138,304741614,546751437,980952673, 1759973660] |