n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 25 |
5 | 77 |
6 | 252 |
7 | 848 |
8 | 2894 |
9 | 10064 |
10 | 35290 |
11 | 125487 |
12 | 450179 |
13 | 1626087 |
14 | 5916476 |
15 | 21633851 |
16 | 79579418 |
17 | 294022842 |
18 | 1090624361 |
19 | 4061006824 |
20 | 15168490711 |
21 | 56843270546 |
22 | 213593833242 |
23 | 804616157278 |
24 | 3038263114399 |
25 | 11496594775537 |
26 | 43593624433215 |
27 | 165604694730541 |
28 | 630191189599674 |
29 | 2402056664402975 |
[1,1,3,8,25,77,252,848,2894,10064,35290,125487, 450179,1626087,5916476,21633851,79579418, 294022842,1090624361,4061006824,15168490711, 56843270546,213593833242,804616157278, 3038263114399,11496594775537,43593624433215, 165604694730541,630191189599674,2402056664402975] |