n | a(n) |
---|---|
1 | 4 |
2 | 18 |
3 | 86 |
4 | 393 |
5 | 1790 |
6 | 7918 |
7 | 34047 |
8 | 142442 |
9 | 582768 |
10 | 2344913 |
11 | 9330350 |
12 | 36842164 |
13 | 144611963 |
14 | 564509442 |
15 | 2191142528 |
16 | 8453688007 |
17 | 32411106626 |
18 | 123493645782 |
19 | 467831766283 |
20 | 1763390759650 |
21 | 6619106543024 |
22 | 24762942068363 |
23 | 92393401202050 |
24 | 343951336690542 |
[4,18,86,393,1790,7918,34047,142442,582768, 2344913,9330350,36842164,144611963,564509442, 2191142528,8453688007,32411106626,123493645782, 467831766283,1763390759650,6619106543024, 24762942068363,92393401202050,343951336690542] |