n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 14 |
5 | 39 |
6 | 104 |
7 | 284 |
8 | 775 |
9 | 2145 |
10 | 5941 |
11 | 16563 |
12 | 46329 |
13 | 130100 |
14 | 366432 |
15 | 1035191 |
16 | 2931797 |
17 | 8323290 |
18 | 23680142 |
19 | 67505721 |
20 | 192791938 |
21 | 551537506 |
22 | 1580315319 |
23 | 4534715008 |
24 | 13030197881 |
25 | 37489497472 |
26 | 107991978290 |
27 | 311433926717 |
28 | 899093131819 |
29 | 2598257241179 |
[1,1,2,6,14,39,104,284,775,2145,5941,16563,46329, 130100,366432,1035191,2931797,8323290,23680142, 67505721,192791938,551537506,1580315319, 4534715008,13030197881,37489497472,107991978290, 311433926717,899093131819,2598257241179] |