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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 78 |
| 3 | 79 |
| 4 | 251 |
| 5 | 896 |
| 6 | 2669 |
| 7 | 8283 |
| 8 | 25770 |
| 9 | 79047 |
| 10 | 246053 |
| 11 | 762945 |
| 12 | 2360425 |
| 13 | 7321295 |
| 14 | 22685256 |
| 15 | 70286966 |
| 16 | 217858158 |
| 17 | 675095417 |
| 18 | 2092068068 |
| 19 | 6483475187 |
| 20 | 20091819256 |
| 21 | 62264156028 |
| 22 | 192956081997 |
| 23 | 597964496726 |
| 24 | 1853080152322 |
| 25 | 5742656322238 |
[16,78,79,251,896,2669,8283,25770,79047,246053, 762945,2360425,7321295,22685256,70286966, 217858158,675095417,2092068068,6483475187, 20091819256,62264156028,192956081997,597964496726, 1853080152322,5742656322238] |