n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 22 |
4 | 126 |
5 | 1126 |
6 | 13566 |
7 | 199942 |
8 | 3449886 |
9 | 68063206 |
10 | 1510770366 |
11 | 37260158662 |
12 | 1010843390046 |
13 | 29916558520486 |
14 | 959183053952766 |
15 | 33118910817698182 |
16 | 1225219266296232606 |
17 | 48348200298184900966 |
18 | 2027102674516399784766 |
19 | 89990106205541778450502 |
[1,2,6,22,126,1126,13566,199942,3449886,68063206, 1510770366,37260158662,1010843390046, 29916558520486,959183053952766,33118910817698182, 1225219266296232606,48348200298184900966, 2027102674516399784766,89990106205541778450502] |