n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 26 |
6 | 73 |
7 | 214 |
8 | 651 |
9 | 2040 |
10 | 6549 |
11 | 21453 |
12 | 71485 |
13 | 241702 |
14 | 827603 |
15 | 2865087 |
16 | 10014927 |
17 | 35307628 |
18 | 125427569 |
19 | 448616693 |
20 | 1614432373 |
21 | 5842129120 |
22 | 21247505098 |
23 | 77631329535 |
24 | 284832049361 |
25 | 1049092809734 |
26 | 3877749157355 |
27 | 14380314221305 |
28 | 53490244751332 |
[1,1,2,4,10,26,73,214,651,2040,6549,21453,71485, 241702,827603,2865087,10014927,35307628,125427569, 448616693,1614432373,5842129120,21247505098, 77631329535,284832049361,1049092809734, 3877749157355,14380314221305,53490244751332] |