n | a(n) |
---|---|
1 | 253 |
2 | 787 |
3 | 2237 |
4 | 6615 |
5 | 19723 |
6 | 57699 |
7 | 169561 |
8 | 500813 |
9 | 1473813 |
10 | 4336509 |
11 | 12776787 |
12 | 37624405 |
13 | 110768047 |
14 | 326202095 |
15 | 960592477 |
16 | 2828495527 |
17 | 8329036847 |
18 | 24526561909 |
19 | 72221962493 |
20 | 212669436487 |
21 | 626242809531 |
22 | 1844074518231 |
[253,787,2237,6615,19723,57699,169561,500813, 1473813,4336509,12776787,37624405,110768047, 326202095,960592477,2828495527,8329036847, 24526561909,72221962493,212669436487,626242809531, 1844074518231] |