n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 16 |
5 | 43 |
6 | 120 |
7 | 369 |
8 | 1244 |
9 | 4449 |
10 | 16424 |
11 | 61645 |
12 | 233568 |
13 | 890421 |
14 | 3409866 |
15 | 13105083 |
16 | 50517580 |
17 | 195234557 |
18 | 756198408 |
19 | 2934687173 |
20 | 11408742152 |
21 | 44420399805 |
22 | 173191793402 |
23 | 676104404123 |
24 | 2642356839108 |
25 | 10337529692357 |
26 | 40481034411830 |
27 | 158658210122079 |
28 | 622329139387184 |
29 | 2442857958597649 |
[1,1,3,6,16,43,120,369,1244,4449,16424,61645, 233568,890421,3409866,13105083,50517580,195234557, 756198408,2934687173,11408742152,44420399805, 173191793402,676104404123,2642356839108, 10337529692357,40481034411830,158658210122079, 622329139387184,2442857958597649] |