n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 35 |
6 | 97 |
7 | 273 |
8 | 778 |
9 | 2240 |
10 | 6499 |
11 | 18976 |
12 | 55703 |
13 | 164243 |
14 | 486130 |
15 | 1443620 |
16 | 4299365 |
17 | 12836825 |
18 | 38413933 |
19 | 115184282 |
20 | 346005073 |
21 | 1041072108 |
22 | 3137060983 |
23 | 9465689545 |
24 | 28596915843 |
25 | 86492865522 |
26 | 261876842801 |
27 | 793661873276 |
[1,1,2,5,13,35,97,273,778,2240,6499,18976,55703, 164243,486130,1443620,4299365,12836825,38413933, 115184282,346005073,1041072108,3137060983, 9465689545,28596915843,86492865522,261876842801, 793661873276] |