n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 43 |
6 | 143 |
7 | 509 |
8 | 1921 |
9 | 7631 |
10 | 31725 |
11 | 137412 |
12 | 617822 |
13 | 2874819 |
14 | 13809305 |
15 | 68331089 |
16 | 347657464 |
17 | 1815839759 |
18 | 9722708061 |
19 | 53301771604 |
20 | 298854490602 |
21 | 1712023130016 |
22 | 10011533550216 |
23 | 59714205975048 |
24 | 363008132101658 |
25 | 2247599137530241 |
26 | 14164805684388087 |
27 | 90810818671081267 |
28 | 591921142070249872 |
[1,1,2,5,14,43,143,509,1921,7631,31725,137412, 617822,2874819,13809305,68331089,347657464, 1815839759,9722708061,53301771604,298854490602, 1712023130016,10011533550216,59714205975048, 363008132101658,2247599137530241, 14164805684388087,90810818671081267, 591921142070249872] |