n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 30 |
4 | 126 |
5 | 534 |
6 | 2275 |
7 | 9667 |
8 | 41089 |
9 | 174660 |
10 | 742428 |
11 | 3155820 |
12 | 13414405 |
13 | 57020437 |
14 | 242375995 |
15 | 1030264362 |
16 | 4379330826 |
17 | 18615162402 |
18 | 79127219431 |
19 | 336345003127 |
20 | 1429697162869 |
21 | 6077194423824 |
22 | 25832248272072 |
23 | 109804788896376 |
[1,7,30,126,534,2275,9667,41089,174660,742428, 3155820,13414405,57020437,242375995,1030264362, 4379330826,18615162402,79127219431,336345003127, 1429697162869,6077194423824,25832248272072, 109804788896376] |