n | a(n) |
---|---|
1 | 1 |
2 | 16 |
3 | 42 |
4 | 118 |
5 | 371 |
6 | 1203 |
7 | 3917 |
8 | 12919 |
9 | 42060 |
10 | 137964 |
11 | 453179 |
12 | 1485554 |
13 | 4873627 |
14 | 15999482 |
15 | 52491249 |
16 | 172244821 |
17 | 565295892 |
18 | 1855010713 |
19 | 6087300807 |
20 | 19976720519 |
21 | 65555588200 |
22 | 215127264249 |
23 | 705970664448 |
24 | 2316727402348 |
25 | 7602611158078 |
[1,16,42,118,371,1203,3917,12919,42060,137964, 453179,1485554,4873627,15999482,52491249, 172244821,565295892,1855010713,6087300807, 19976720519,65555588200,215127264249,705970664448, 2316727402348,7602611158078] |