n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 42 |
6 | 128 |
7 | 389 |
8 | 1179 |
9 | 3572 |
10 | 10825 |
11 | 32810 |
12 | 99446 |
13 | 301412 |
14 | 913547 |
15 | 2768863 |
16 | 8392136 |
17 | 25435699 |
18 | 77092976 |
19 | 233660832 |
20 | 708201794 |
21 | 2146486339 |
22 | 6505777953 |
23 | 19718339694 |
24 | 59764246943 |
25 | 181139247400 |
26 | 549014312524 |
27 | 1664005563066 |
[1,2,5,14,42,128,389,1179,3572,10825,32810,99446, 301412,913547,2768863,8392136,25435699,77092976, 233660832,708201794,2146486339,6505777953, 19718339694,59764246943,181139247400,549014312524, 1664005563066] |