n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 45 |
3 | 165 |
4 | 495 |
5 | 1231 |
6 | 2639 |
7 | 5055 |
8 | 8885 |
9 | 14605 |
10 | 22761 |
11 | 33969 |
12 | 48915 |
13 | 68355 |
14 | 93115 |
15 | 124091 |
16 | 162249 |
17 | 208625 |
18 | 264325 |
19 | 330525 |
20 | 408471 |
21 | 499479 |
22 | 604935 |
23 | 726295 |
24 | 865085 |
25 | 1022901 |
26 | 1201409 |
27 | 1402345 |
28 | 1627515 |
29 | 1878795 |
30 | 2158131 |
31 | 2467539 |
32 | 2809105 |
33 | 3184985 |
34 | 3597405 |
[1,9,45,165,495,1231,2639,5055,8885,14605,22761, 33969,48915,68355,93115,124091,162249,208625, 264325,330525,408471,499479,604935,726295,865085, 1022901,1201409,1402345,1627515,1878795,2158131, 2467539,2809105,3184985,3597405] |