n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 8 |
6 | 19 |
7 | 48 |
8 | 126 |
9 | 355 |
10 | 1037 |
11 | 3124 |
12 | 9676 |
13 | 30604 |
14 | 98473 |
15 | 321572 |
16 | 1063146 |
17 | 3552563 |
18 | 11982142 |
19 | 40746208 |
20 | 139573646 |
21 | 481232759 |
22 | 1669024720 |
23 | 5819537836 |
24 | 20390462732 |
25 | 71762924354 |
26 | 253601229046 |
27 | 899586777908 |
28 | 3202234779826 |
29 | 11435967528286 |
30 | 40964243249727 |
[1,1,1,2,4,8,19,48,126,355,1037,3124,9676,30604, 98473,321572,1063146,3552563,11982142,40746208, 139573646,481232759,1669024720,5819537836, 20390462732,71762924354,253601229046,899586777908, 3202234779826,11435967528286,40964243249727] |