n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 14 |
3 | 72 |
4 | 376 |
5 | 1968 |
6 | 10304 |
7 | 53952 |
8 | 282496 |
9 | 1479168 |
10 | 7745024 |
11 | 40553472 |
12 | 212340736 |
13 | 1111830528 |
14 | 5821620224 |
15 | 30482399232 |
16 | 159607914496 |
17 | 835717890048 |
18 | 4375875682304 |
19 | 22912382533632 |
20 | 119970792472576 |
21 | 628175224700928 |
22 | 3289168178315264 |
23 | 17222308171087872 |
[1,3,14,72,376,1968,10304,53952,282496,1479168, 7745024,40553472,212340736,1111830528,5821620224, 30482399232,159607914496,835717890048, 4375875682304,22912382533632,119970792472576, 628175224700928,3289168178315264, 17222308171087872] |