n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 8 |
4 | 17 |
5 | 98 |
6 | 362 |
7 | 1916 |
8 | 9512 |
9 | 53858 |
10 | 315872 |
11 | 1984979 |
12 | 13105685 |
13 | 91128546 |
14 | 663815424 |
15 | 5055622309 |
16 | 40148341135 |
17 | 331753228115 |
18 | 2846786927873 |
19 | 25323311882074 |
20 | 233137061978065 |
21 | 2218141402504254 |
22 | 21780561656373552 |
23 | 220451321425101091 |
24 | 2297330116404668422 |
[0,1,1,8,17,98,362,1916,9512,53858,315872,1984979, 13105685,91128546,663815424,5055622309, 40148341135,331753228115,2846786927873, 25323311882074,233137061978065,2218141402504254, 21780561656373552,220451321425101091, 2297330116404668422] |