n | a(n) |
---|---|
3 | 0 |
4 | 0 |
5 | 0 |
6 | 3 |
7 | 7 |
8 | 12 |
9 | 39 |
10 | 105 |
11 | 231 |
12 | 577 |
13 | 1482 |
14 | 3549 |
15 | 8603 |
16 | 21340 |
17 | 52122 |
18 | 126777 |
19 | 310859 |
20 | 761199 |
21 | 1859014 |
22 | 4549215 |
23 | 11141085 |
24 | 27266225 |
25 | 66760855 |
26 | 163567911 |
27 | 400786617 |
28 | 982265827 |
29 | 2408361144 |
30 | 5906499136 |
31 | 14489105190 |
32 | 35553445788 |
33 | 87264949808 |
34 | 214241203801 |
[0,0,0,3,7,12,39,105,231,577,1482,3549,8603,21340, 52122,126777,310859,761199,1859014,4549215, 11141085,27266225,66760855,163567911,400786617, 982265827,2408361144,5906499136,14489105190, 35553445788,87264949808,214241203801] |