n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 11 |
4 | 32 |
5 | 92 |
6 | 265 |
7 | 763 |
8 | 2197 |
9 | 6326 |
10 | 18215 |
11 | 52448 |
12 | 151018 |
13 | 434839 |
14 | 1252069 |
15 | 3605189 |
16 | 10380728 |
17 | 29890115 |
18 | 86065156 |
19 | 247814740 |
20 | 713554105 |
21 | 2054597159 |
22 | 5915976737 |
23 | 17034376106 |
24 | 49048531159 |
25 | 141229616740 |
26 | 406654474114 |
[1,1,4,11,32,92,265,763,2197,6326,18215,52448, 151018,434839,1252069,3605189,10380728,29890115, 86065156,247814740,713554105,2054597159, 5915976737,17034376106,49048531159,141229616740, 406654474114] |