n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 32 |
3 | 164 |
4 | 800 |
5 | 3505 |
6 | 14413 |
7 | 57732 |
8 | 232124 |
9 | 928469 |
10 | 3723528 |
11 | 14911100 |
12 | 59687737 |
13 | 238828205 |
14 | 955470060 |
15 | 3822006173 |
[1,4,32,164,800,3505,14413,57732,232124,928469, 3723528,14911100,59687737,238828205,955470060, 3822006173] |