n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 47 |
5 | 157 |
6 | 556 |
7 | 2019 |
8 | 7584 |
9 | 29152 |
10 | 113984 |
11 | 453620 |
12 | 1829076 |
13 | 7459678 |
14 | 30755525 |
15 | 127897631 |
16 | 536170959 |
17 | 2264041183 |
18 | 9619849541 |
19 | 41113706454 |
20 | 176630946692 |
21 | 762409276043 |
22 | 3305293076682 |
23 | 14386354109668 |
24 | 62846284893256 |
25 | 275475587203370 |
26 | 1211274147573245 |
27 | 5341553425781988 |
[1,2,5,15,47,157,556,2019,7584,29152,113984, 453620,1829076,7459678,30755525,127897631, 536170959,2264041183,9619849541,41113706454, 176630946692,762409276043,3305293076682, 14386354109668,62846284893256,275475587203370, 1211274147573245,5341553425781988] |