n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 47 |
5 | 225 |
6 | 1177 |
7 | 6625 |
8 | 39723 |
9 | 251939 |
10 | 1681535 |
11 | 11764185 |
12 | 86002177 |
13 | 655305697 |
14 | 5193232611 |
15 | 42726002123 |
16 | 364338045647 |
17 | 3215471252769 |
18 | 29331858429241 |
19 | 276224445794785 |
20 | 2682395337435723 |
21 | 26832698102762435 |
22 | 276221586866499839 |
23 | 2923468922184615897 |
[1,1,3,11,47,225,1177,6625,39723,251939,1681535, 11764185,86002177,655305697,5193232611, 42726002123,364338045647,3215471252769, 29331858429241,276224445794785,2682395337435723, 26832698102762435,276221586866499839, 2923468922184615897] |