n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 44 |
3 | 156 |
4 | 450 |
5 | 1122 |
6 | 2508 |
7 | 5148 |
8 | 9867 |
9 | 17875 |
10 | 30888 |
11 | 51272 |
12 | 82212 |
13 | 127908 |
14 | 193800 |
15 | 286824 |
16 | 415701 |
17 | 591261 |
18 | 826804 |
19 | 1138500 |
20 | 1545830 |
21 | 2072070 |
22 | 2744820 |
23 | 3596580 |
24 | 4665375 |
25 | 5995431 |
26 | 7637904 |
27 | 9651664 |
28 | 12104136 |
29 | 15072200 |
30 | 18643152 |
31 | 22915728 |
32 | 28001193 |
[1,9,44,156,450,1122,2508,5148,9867,17875,30888, 51272,82212,127908,193800,286824,415701,591261, 826804,1138500,1545830,2072070,2744820,3596580, 4665375,5995431,7637904,9651664,12104136,15072200, 18643152,22915728,28001193] |