n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 8 |
4 | 19 |
5 | 57 |
6 | 209 |
7 | 884 |
8 | 4148 |
9 | 21156 |
10 | 115985 |
11 | 678581 |
12 | 4213609 |
13 | 27644450 |
14 | 190899336 |
15 | 1382958560 |
16 | 10480142163 |
17 | 82864869821 |
18 | 682076806177 |
19 | 5832742205076 |
20 | 51724158235392 |
21 | 474869816156772 |
22 | 4506715738447345 |
23 | 44152005855084369 |
24 | 445958869294805313 |
25 | 4638590332229999378 |
[1,2,3,8,19,57,209,884,4148,21156,115985,678581, 4213609,27644450,190899336,1382958560,10480142163, 82864869821,682076806177,5832742205076, 51724158235392,474869816156772,4506715738447345, 44152005855084369,445958869294805313, 4638590332229999378] |