n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 20 |
3 | 88 |
4 | 332 |
5 | 1276 |
6 | 5204 |
7 | 19492 |
8 | 74536 |
9 | 288525 |
10 | 1140005 |
11 | 4512593 |
12 | 18022937 |
13 | 71970505 |
14 | 287448752 |
15 | 1149604849 |
[1,5,20,88,332,1276,5204,19492,74536,288525, 1140005,4512593,18022937,71970505,287448752, 1149604849] |