n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 15 |
4 | 40 |
5 | 89 |
6 | 210 |
7 | 435 |
8 | 919 |
9 | 1819 |
10 | 3583 |
11 | 6719 |
12 | 12648 |
13 | 22849 |
14 | 41074 |
15 | 72050 |
16 | 125411 |
17 | 213620 |
18 | 361845 |
19 | 601945 |
20 | 995074 |
21 | 1622338 |
22 | 2626342 |
23 | 4201367 |
24 | 6681992 |
25 | 10515756 |
26 | 16449852 |
27 | 25509952 |
28 | 39333476 |
29 | 60172701 |
30 | 91577517 |
31 | 138390481 |
32 | 208096282 |
33 | 310976731 |
34 | 462512831 |
[1,2,6,15,40,89,210,435,919,1819,3583,6719,12648, 22849,41074,72050,125411,213620,361845,601945, 995074,1622338,2626342,4201367,6681992,10515756, 16449852,25509952,39333476,60172701,91577517, 138390481,208096282,310976731,462512831] |