n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 13 |
4 | 34 |
5 | 108 |
6 | 415 |
7 | 1841 |
8 | 9381 |
9 | 53733 |
10 | 342086 |
11 | 2395481 |
12 | 18300250 |
13 | 151453434 |
14 | 1349856656 |
15 | 12890177378 |
16 | 131298281746 |
17 | 1420980348324 |
18 | 16283235530691 |
19 | 196958363484995 |
20 | 2507751773736087 |
21 | 33526171616091612 |
[1,2,5,13,34,108,415,1841,9381,53733,342086, 2395481,18300250,151453434,1349856656,12890177378, 131298281746,1420980348324,16283235530691, 196958363484995,2507751773736087, 33526171616091612] |