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| n | a(n) |
|---|---|
| 0 | 19 |
| 1 | 77 |
| 2 | 327 |
| 3 | 12503 |
| 4 | 50339 |
| 5 | 213859 |
| 6 | 8176981 |
| 7 | 32921783 |
| 8 | 139864113 |
| 9 | 5347758077 |
| 10 | 21530896421 |
| 11 | 91471343761 |
| 12 | 3497441959339 |
| 13 | 14081239181117 |
| 14 | 59822398683807 |
| 15 | 2287332389165783 |
| 16 | 9209151955346939 |
| 17 | 39123940210553539 |
| 18 | 1495918879956381421 |
| 19 | 6022799460036079223 |
[19,77,327,12503,50339,213859,8176981,32921783, 139864113,5347758077,21530896421,91471343761, 3497441959339,14081239181117,59822398683807, 2287332389165783,9209151955346939, 39123940210553539,1495918879956381421, 6022799460036079223] |