n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 8 |
5 | 13 |
6 | 74 |
7 | 124 |
8 | 784 |
9 | 1364 |
10 | 9069 |
11 | 16194 |
12 | 111144 |
13 | 202070 |
14 | 1418196 |
15 | 2612376 |
16 | 18642208 |
17 | 34682348 |
18 | 250706548 |
19 | 470066728 |
20 | 3433030048 |
21 | 6477333149 |
22 | 47703926354 |
23 | 90472092748 |
24 | 670963514192 |
25 | 1278016171132 |
26 | 9534032792470 |
27 | 18226719157820 |
28 | 136658371126320 |
[1,1,1,2,8,13,74,124,784,1364,9069,16194,111144, 202070,1418196,2612376,18642208,34682348, 250706548,470066728,3433030048,6477333149, 47703926354,90472092748,670963514192, 1278016171132,9534032792470,18226719157820, 136658371126320] |