n | a(n) |
---|---|
3 | 0 |
4 | 1 |
5 | 2 |
6 | 5 |
7 | 7 |
8 | 17 |
9 | 21 |
10 | 85 |
11 | 153 |
12 | 536 |
13 | 1069 |
14 | 3197 |
15 | 7115 |
16 | 20308 |
17 | 46964 |
18 | 129045 |
19 | 310597 |
20 | 836871 |
21 | 2073423 |
22 | 5548919 |
23 | 14044186 |
24 | 37430249 |
25 | 96200983 |
26 | 255998110 |
27 | 664958665 |
28 | 1769131947 |
29 | 4633463984 |
30 | 12335480609 |
31 | 32519540141 |
[0,1,2,5,7,17,21,85,153,536,1069,3197,7115,20308, 46964,129045,310597,836871,2073423,5548919, 14044186,37430249,96200983,255998110,664958665, 1769131947,4633463984,12335480609,32519540141] |