n | a(n) |
---|---|
3 | 0 |
4 | 0 |
5 | 5 |
6 | 7 |
7 | 7 |
8 | 28 |
9 | 67 |
10 | 113 |
11 | 281 |
12 | 690 |
13 | 1450 |
14 | 3359 |
15 | 8590 |
16 | 20542 |
17 | 49507 |
18 | 127719 |
19 | 328222 |
20 | 836251 |
21 | 2183226 |
22 | 5752972 |
23 | 15123063 |
24 | 40005561 |
25 | 106343713 |
26 | 282743044 |
27 | 752928537 |
28 | 2008752748 |
29 | 5363109922 |
30 | 14330737673 |
31 | 38333393789 |
[0,0,5,7,7,28,67,113,281,690,1450,3359,8590,20542, 49507,127719,328222,836251,2183226,5752972, 15123063,40005561,106343713,282743044,752928537, 2008752748,5363109922,14330737673,38333393789] |