n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 8 |
3 | 21 |
4 | 93 |
5 | 314 |
6 | 1213 |
7 | 4375 |
8 | 16334 |
9 | 59925 |
10 | 221799 |
11 | 817280 |
12 | 3018301 |
13 | 11134189 |
14 | 41096528 |
15 | 151643937 |
16 | 559640289 |
17 | 2065192514 |
18 | 7621289593 |
19 | 28124714395 |
20 | 103789150046 |
21 | 383013144129 |
22 | 1413437041011 |
23 | 5216013647648 |
24 | 19248692843977 |
[1,1,8,21,93,314,1213,4375,16334,59925,221799, 817280,3018301,11134189,41096528,151643937, 559640289,2065192514,7621289593,28124714395, 103789150046,383013144129,1413437041011, 5216013647648,19248692843977] |