n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 14 |
4 | 40 |
5 | 116 |
6 | 344 |
7 | 1040 |
8 | 3188 |
9 | 9880 |
10 | 30912 |
11 | 97520 |
12 | 309856 |
13 | 990656 |
14 | 3184672 |
15 | 10287808 |
16 | 33379072 |
17 | 108724864 |
18 | 355405568 |
19 | 1165521408 |
20 | 3833497408 |
21 | 12642775424 |
22 | 41799227392 |
23 | 138512751360 |
24 | 459973953024 |
25 | 1530498526208 |
[1,2,5,14,40,116,344,1040,3188,9880,30912,97520, 309856,990656,3184672,10287808,33379072,108724864, 355405568,1165521408,3833497408,12642775424, 41799227392,138512751360,459973953024, 1530498526208] |