n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 13 |
5 | 56 |
6 | 325 |
7 | 2193 |
8 | 17133 |
9 | 151403 |
10 | 1492804 |
11 | 16236705 |
12 | 193055170 |
13 | 2490573878 |
14 | 34643194357 |
15 | 516777941500 |
16 | 8228894996020 |
17 | 139306002813141 |
18 | 2498256515693495 |
19 | 47311260905613040 |
20 | 943450588439096803 |
21 | 19760190063791826195 |
22 | 433686706399407670577 |
[1,0,2,3,13,56,325,2193,17133,151403,1492804, 16236705,193055170,2490573878,34643194357, 516777941500,8228894996020,139306002813141, 2498256515693495,47311260905613040, 943450588439096803,19760190063791826195, 433686706399407670577] |