n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 4 |
7 | 7 |
8 | 18 |
9 | 37 |
10 | 84 |
11 | 179 |
12 | 390 |
13 | 833 |
14 | 1784 |
15 | 3791 |
16 | 8042 |
17 | 16989 |
18 | 35804 |
19 | 75243 |
20 | 157774 |
21 | 330105 |
22 | 689344 |
23 | 1436935 |
24 | 2990386 |
25 | 6213781 |
26 | 12893604 |
27 | 26719267 |
28 | 55302678 |
29 | 114333617 |
30 | 236123784 |
31 | 487160639 |
32 | 1004147450 |
33 | 2067947213 |
34 | 4255199084 |
35 | 8749007451 |
36 | 17975233502 |
[0,0,0,0,1,1,4,7,18,37,84,179,390,833,1784,3791, 8042,16989,35804,75243,157774,330105,689344, 1436935,2990386,6213781,12893604,26719267, 55302678,114333617,236123784,487160639,1004147450, 2067947213,4255199084,8749007451,17975233502] |