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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 95 |
| 3 | 419 |
| 4 | 2227 |
| 5 | 12039 |
| 6 | 60157 |
| 7 | 304184 |
| 8 | 1569163 |
| 9 | 8067785 |
| 10 | 41794215 |
| 11 | 216350270 |
| 12 | 1121920799 |
| 13 | 5819644170 |
| 14 | 30203030342 |
| 15 | 156774826962 |
| 16 | 813943024542 |
| 17 | 4226109266686 |
| 18 | 21944484821348 |
| 19 | 113952475164535 |
| 20 | 591748572069652 |
[16,95,419,2227,12039,60157,304184,1569163, 8067785,41794215,216350270,1121920799,5819644170, 30203030342,156774826962,813943024542, 4226109266686,21944484821348,113952475164535, 591748572069652] |