n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 33 |
4 | 289 |
5 | 3414 |
6 | 50070 |
7 | 873613 |
8 | 17650829 |
9 | 405071318 |
10 | 10405071318 |
11 | 295716741929 |
12 | 9211817190185 |
13 | 312086923782438 |
14 | 11424093749340454 |
15 | 449317984130199829 |
16 | 18896062057839751445 |
17 | 846136323944176515622 |
18 | 40192544399240714091046 |
19 | 2018612200059554303215025 |
[1,2,6,33,289,3414,50070,873613,17650829, 405071318,10405071318,295716741929,9211817190185, 312086923782438,11424093749340454, 449317984130199829,18896062057839751445, 846136323944176515622,40192544399240714091046, 2018612200059554303215025] |