n | a(n) |
---|---|
9 | 1 |
10 | 9 |
11 | 45 |
12 | 165 |
13 | 495 |
14 | 1287 |
15 | 3003 |
16 | 6435 |
17 | 12870 |
18 | 24301 |
19 | 43686 |
20 | 75249 |
21 | 124809 |
22 | 200115 |
23 | 311157 |
24 | 470415 |
25 | 693000 |
26 | 996633 |
27 | 1401436 |
28 | 1929465 |
29 | 2603979 |
30 | 3448440 |
31 | 4485267 |
32 | 5734395 |
33 | 7211718 |
34 | 8927523 |
35 | 10885050 |
36 | 13079257 |
37 | 15496065 |
38 | 18112050 |
39 | 20894757 |
40 | 23803659 |
41 | 26791749 |
42 | 29807697 |
43 | 32798448 |
[1,9,45,165,495,1287,3003,6435,12870,24301,43686, 75249,124809,200115,311157,470415,693000,996633, 1401436,1929465,2603979,3448440,4485267,5734395, 7211718,8927523,10885050,13079257,15496065, 18112050,20894757,23803659,26791749,29807697, 32798448] |