n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 30 |
3 | 136 |
4 | 579 |
5 | 2358 |
6 | 9288 |
7 | 35640 |
8 | 133893 |
9 | 494262 |
10 | 1797714 |
11 | 6456024 |
12 | 22930695 |
13 | 80660934 |
14 | 281309436 |
15 | 973599912 |
16 | 3346483977 |
17 | 11431295910 |
18 | 38828142342 |
19 | 131206405608 |
20 | 441271936971 |
21 | 1477621745046 |
22 | 4927988620080 |
23 | 16373939547096 |
[1,6,30,136,579,2358,9288,35640,133893,494262, 1797714,6456024,22930695,80660934,281309436, 973599912,3346483977,11431295910,38828142342, 131206405608,441271936971,1477621745046, 4927988620080,16373939547096] |