n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 12 |
4 | 46 |
5 | 156 |
6 | 476 |
7 | 1349 |
8 | 3571 |
9 | 8939 |
10 | 21310 |
11 | 48701 |
12 | 107233 |
13 | 228465 |
14 | 472626 |
15 | 952169 |
16 | 1872813 |
17 | 3604103 |
18 | 6798753 |
19 | 12592030 |
20 | 22930495 |
21 | 41108069 |
22 | 72630552 |
23 | 126596216 |
24 | 217879554 |
25 | 370555433 |
26 | 623223294 |
27 | 1037221437 |
28 | 1709205913 |
[1,3,12,46,156,476,1349,3571,8939,21310,48701, 107233,228465,472626,952169,1872813,3604103, 6798753,12592030,22930495,41108069,72630552, 126596216,217879554,370555433,623223294, 1037221437,1709205913] |