n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 15 |
4 | 59 |
5 | 432 |
6 | 3332 |
7 | 48304 |
8 | 732710 |
9 | 20860338 |
10 | 622243455 |
11 | 34837075520 |
12 | 2043323102439 |
13 | 224967044124824 |
14 | 25947204334949263 |
15 | 5617471553259441802 |
16 | 1274053481965034919451 |
17 | 542391484462533633238628 |
[1,2,4,15,59,432,3332,48304,732710,20860338, 622243455,34837075520,2043323102439, 224967044124824,25947204334949263, 5617471553259441802,1274053481965034919451, 542391484462533633238628] |