n | a(n) |
---|---|
0 | 1 |
1 | 20 |
2 | 167 |
3 | 867 |
4 | 3322 |
5 | 10309 |
6 | 27410 |
7 | 64770 |
8 | 139479 |
9 | 278674 |
10 | 523457 |
11 | 933725 |
12 | 1594008 |
13 | 2620411 |
14 | 4168756 |
15 | 6444020 |
16 | 9711165 |
17 | 14307456 |
18 | 20656363 |
19 | 29283143 |
20 | 40832198 |
21 | 56086305 |
22 | 75987814 |
23 | 101661910 |
24 | 134442035 |
25 | 175897566 |
26 | 227863845 |
27 | 292474657 |
28 | 372197252 |
29 | 469870007 |
30 | 588742824 |
[1,20,167,867,3322,10309,27410,64770,139479, 278674,523457,933725,1594008,2620411,4168756, 6444020,9711165,14307456,20656363,29283143, 40832198,56086305,75987814,101661910,134442035, 175897566,227863845,292474657,372197252,469870007, 588742824] |