n | a(n) |
---|---|
0 | 5 |
1 | 9 |
2 | 23 |
3 | 55 |
4 | 133 |
5 | 321 |
6 | 775 |
7 | 1871 |
8 | 4517 |
9 | 10905 |
10 | 26327 |
11 | 63559 |
12 | 153445 |
13 | 370449 |
14 | 894343 |
15 | 2159135 |
16 | 5212613 |
17 | 12584361 |
18 | 30381335 |
19 | 73347031 |
20 | 177075397 |
21 | 427497825 |
22 | 1032071047 |
23 | 2491639919 |
24 | 6015350885 |
25 | 14522341689 |
26 | 35060034263 |
27 | 84642410215 |
[5,9,23,55,133,321,775,1871,4517,10905,26327, 63559,153445,370449,894343,2159135,5212613, 12584361,30381335,73347031,177075397,427497825, 1032071047,2491639919,6015350885,14522341689, 35060034263,84642410215] |