n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 3 |
5 | 9 |
6 | 18 |
7 | 38 |
8 | 68 |
9 | 120 |
10 | 200 |
11 | 326 |
12 | 508 |
13 | 785 |
14 | 1179 |
15 | 1741 |
16 | 2532 |
17 | 3633 |
18 | 5141 |
19 | 7199 |
20 | 9972 |
21 | 13680 |
22 | 18618 |
23 | 25116 |
24 | 33642 |
25 | 44738 |
26 | 59139 |
27 | 77653 |
28 | 101444 |
29 | 131751 |
30 | 170320 |
31 | 219049 |
32 | 280553 |
33 | 357652 |
34 | 454254 |
35 | 574507 |
36 | 724135 |
37 | 909265 |
38 | 1138169 |
39 | 1419737 |
40 | 1765884 |
41 | 2189441 |
[0,0,0,1,3,9,18,38,68,120,200,326,508,785,1179, 1741,2532,3633,5141,7199,9972,13680,18618,25116, 33642,44738,59139,77653,101444,131751,170320, 219049,280553,357652,454254,574507,724135,909265, 1138169,1419737,1765884,2189441] |