n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 23 |
4 | 94 |
5 | 392 |
6 | 1680 |
7 | 7387 |
8 | 33110 |
9 | 150905 |
10 | 698996 |
11 | 3287550 |
12 | 15685420 |
13 | 75877427 |
14 | 371994692 |
15 | 1847450970 |
16 | 9290557158 |
17 | 47291312897 |
18 | 243574276884 |
19 | 1268915237141 |
20 | 6683909556420 |
21 | 35585631836229 |
22 | 191433293140656 |
23 | 1040197718292138 |
24 | 5707318227692796 |
[1,2,6,23,94,392,1680,7387,33110,150905,698996, 3287550,15685420,75877427,371994692,1847450970, 9290557158,47291312897,243574276884,1268915237141, 6683909556420,35585631836229,191433293140656, 1040197718292138,5707318227692796] |