n | a(n) |
---|---|
0 | 1 |
1 | 11 |
2 | 65 |
3 | 275 |
4 | 935 |
5 | 2717 |
6 | 7007 |
7 | 16445 |
8 | 35750 |
9 | 72930 |
10 | 140998 |
11 | 260338 |
12 | 461890 |
13 | 791350 |
14 | 1314610 |
15 | 2124694 |
16 | 3350479 |
17 | 5167525 |
18 | 7811375 |
19 | 11593725 |
20 | 16921905 |
21 | 24322155 |
22 | 34467225 |
23 | 48208875 |
24 | 66615900 |
25 | 91018356 |
26 | 123058716 |
27 | 164750740 |
[1,11,65,275,935,2717,7007,16445,35750,72930, 140998,260338,461890,791350,1314610,2124694, 3350479,5167525,7811375,11593725,16921905, 24322155,34467225,48208875,66615900,91018356, 123058716,164750740] |