n | a(n) |
---|---|
0 | 1 |
1 | 24 |
2 | 70 |
3 | 206 |
4 | 608 |
5 | 1798 |
6 | 5324 |
7 | 15780 |
8 | 46806 |
9 | 138918 |
10 | 412508 |
11 | 1225432 |
12 | 3641690 |
13 | 10825628 |
14 | 32190154 |
15 | 95741294 |
16 | 284820048 |
17 | 847475910 |
18 | 2522096172 |
19 | 7507000776 |
20 | 22347852666 |
21 | 66537181776 |
22 | 198128815230 |
23 | 590039959434 |
24 | 1757365514652 |
[1,24,70,206,608,1798,5324,15780,46806,138918, 412508,1225432,3641690,10825628,32190154,95741294, 284820048,847475910,2522096172,7507000776, 22347852666,66537181776,198128815230,590039959434, 1757365514652] |