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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 8 |
| 3 | 15 |
| 4 | 26 |
| 5 | 69 |
| 6 | 134 |
| 7 | 393 |
| 8 | 1556 |
| 9 | 4659 |
| 10 | 9314 |
| 11 | 27933 |
| 12 | 921327 |
| 13 | 85680249 |
| 14 | 171360494 |
| 15 | 2227686253 |
| 16 | 17821489976 |
| 17 | 124750429783 |
| 18 | 19336316610785 |
| 19 | 4544034403522255 |
| 20 | 3567067006764843005 |
| 21 | 203322819385596050031 |
| 22 | 25008706784428314148401 |
| 23 | 825287323886134366896771 |
| 24 | 91606892951360914725537141 |
| 25 | 1923744751978579209236279751 |
[6,8,15,26,69,134,393,1556,4659,9314,27933,921327, 85680249,171360494,2227686253,17821489976, 124750429783,19336316610785,4544034403522255, 3567067006764843005,203322819385596050031, 25008706784428314148401,825287323886134366896771, 91606892951360914725537141, 1923744751978579209236279751] |