n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 12 |
4 | 33 |
5 | 85 |
6 | 165 |
7 | 315 |
8 | 518 |
9 | 846 |
10 | 1260 |
11 | 1870 |
12 | 2607 |
13 | 3627 |
14 | 4823 |
15 | 6405 |
16 | 8220 |
17 | 10540 |
18 | 13158 |
19 | 16416 |
20 | 20045 |
21 | 24465 |
22 | 29337 |
23 | 35167 |
24 | 41538 |
25 | 49050 |
26 | 57200 |
27 | 66690 |
28 | 76923 |
29 | 88711 |
30 | 101355 |
31 | 115785 |
32 | 131192 |
33 | 148632 |
34 | 167178 |
35 | 188020 |
36 | 210105 |
37 | 234765 |
38 | 260813 |
39 | 289731 |
40 | 320190 |
[0,2,12,33,85,165,315,518,846,1260,1870,2607,3627, 4823,6405,8220,10540,13158,16416,20045,24465, 29337,35167,41538,49050,57200,66690,76923,88711, 101355,115785,131192,148632,167178,188020,210105, 234765,260813,289731,320190] |