n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 7 |
5 | 20 |
6 | 67 |
7 | 255 |
8 | 1079 |
9 | 4987 |
10 | 24759 |
11 | 129947 |
12 | 710791 |
13 | 4004619 |
14 | 23031191 |
15 | 134328379 |
16 | 790907943 |
17 | 4686298091 |
18 | 27884452663 |
19 | 166383085851 |
20 | 994632987335 |
21 | 5953222496203 |
22 | 35661292725975 |
23 | 213736364551163 |
24 | 1281494949329767 |
[1,2,3,7,20,67,255,1079,4987,24759,129947,710791, 4004619,23031191,134328379,790907943,4686298091, 27884452663,166383085851,994632987335, 5953222496203,35661292725975,213736364551163, 1281494949329767] |