n | a(n) |
---|---|
1 | 21 |
2 | 30 |
3 | 71 |
4 | 106 |
5 | 279 |
6 | 842 |
7 | 2429 |
8 | 7451 |
9 | 22996 |
10 | 70762 |
11 | 218768 |
12 | 677035 |
13 | 2090867 |
14 | 6478680 |
15 | 20058184 |
16 | 62168555 |
17 | 192733963 |
18 | 597744210 |
19 | 1854283003 |
20 | 5753186642 |
21 | 17852343400 |
22 | 55399248790 |
23 | 171922042756 |
24 | 533541165687 |
25 | 1655798511324 |
[21,30,71,106,279,842,2429,7451,22996,70762, 218768,677035,2090867,6478680,20058184,62168555, 192733963,597744210,1854283003,5753186642, 17852343400,55399248790,171922042756,533541165687, 1655798511324] |