n | a(n) |
---|---|
0 | 3 |
1 | 6 |
2 | 15 |
3 | 36 |
4 | 98 |
5 | 258 |
6 | 677 |
7 | 1830 |
8 | 5006 |
9 | 13340 |
10 | 35215 |
11 | 95702 |
12 | 264851 |
13 | 717760 |
14 | 1894473 |
15 | 5031846 |
16 | 13788409 |
17 | 38375030 |
18 | 105005017 |
19 | 279236168 |
20 | 734728565 |
21 | 1967715202 |
22 | 5416631023 |
23 | 15061949148 |
24 | 41271428388 |
25 | 110250824636 |
26 | 289840310574 |
27 | 766277436248 |
28 | 2072808806434 |
29 | 5730605191220 |
[3,6,15,36,98,258,677,1830,5006,13340,35215,95702, 264851,717760,1894473,5031846,13788409,38375030, 105005017,279236168,734728565,1967715202, 5416631023,15061949148,41271428388,110250824636, 289840310574,766277436248,2072808806434, 5730605191220] |