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| n | a(n) |
|---|---|
| 1 | 128 |
| 2 | 2187 |
| 3 | 6869 |
| 4 | 12856 |
| 5 | 20275 |
| 6 | 31899 |
| 7 | 52532 |
| 8 | 89135 |
| 9 | 152495 |
| 10 | 259230 |
| 11 | 434069 |
| 12 | 712692 |
| 13 | 1145194 |
| 14 | 1800237 |
| 15 | 2769954 |
| 16 | 4175669 |
| 17 | 6174497 |
| 18 | 8966888 |
| 19 | 12805179 |
| 20 | 18003218 |
| 21 | 24947124 |
| 22 | 34107247 |
| 23 | 46051392 |
| 24 | 61459371 |
| 25 | 81138947 |
| 26 | 106043234 |
| 27 | 137289617 |
[128,2187,6869,12856,20275,31899,52532,89135, 152495,259230,434069,712692,1145194,1800237, 2769954,4175669,6174497,8966888,12805179,18003218, 24947124,34107247,46051392,61459371,81138947, 106043234,137289617] |