n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 19 |
5 | 47 |
6 | 131 |
7 | 351 |
8 | 992 |
9 | 2808 |
10 | 8131 |
11 | 23723 |
12 | 70192 |
13 | 209209 |
14 | 629165 |
15 | 1904391 |
16 | 5801109 |
17 | 17764063 |
18 | 54663309 |
19 | 168925259 |
20 | 524064687 |
21 | 1631511342 |
22 | 5095440198 |
23 | 15960070908 |
24 | 50124189982 |
25 | 157806721089 |
26 | 497953049736 |
27 | 1574573746276 |
[1,1,3,7,19,47,131,351,992,2808,8131,23723,70192, 209209,629165,1904391,5801109,17764063,54663309, 168925259,524064687,1631511342,5095440198, 15960070908,50124189982,157806721089,497953049736, 1574573746276] |