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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 49 |
| 3 | 109 |
| 4 | 779 |
| 5 | 2596 |
| 6 | 11283 |
| 7 | 61204 |
| 8 | 284304 |
| 9 | 1375342 |
| 10 | 6952910 |
| 11 | 34481150 |
| 12 | 170526375 |
| 13 | 851167905 |
| 14 | 4246845842 |
| 15 | 21142550887 |
| 16 | 105387070394 |
| 17 | 525656312520 |
| 18 | 2620783997147 |
| 19 | 13066690252443 |
| 20 | 65162285094742 |
| 21 | 324954134100762 |
[5,49,109,779,2596,11283,61204,284304,1375342, 6952910,34481150,170526375,851167905,4246845842, 21142550887,105387070394,525656312520, 2620783997147,13066690252443,65162285094742, 324954134100762] |