n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 57 |
4 | 213 |
5 | 796 |
6 | 2964 |
7 | 11049 |
8 | 41193 |
9 | 153556 |
10 | 572424 |
11 | 2133897 |
12 | 7954765 |
13 | 29653852 |
14 | 110543980 |
15 | 412087129 |
16 | 1536183105 |
17 | 5726601012 |
18 | 21347689024 |
19 | 79580160153 |
20 | 296659834437 |
21 | 1105891936092 |
22 | 4122556653316 |
23 | 15368114012745 |
24 | 57289431819225 |
[4,16,57,213,796,2964,11049,41193,153556,572424, 2133897,7954765,29653852,110543980,412087129, 1536183105,5726601012,21347689024,79580160153, 296659834437,1105891936092,4122556653316, 15368114012745,57289431819225] |