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| n | a(n) |
|---|---|
| 0 | 27 |
| 1 | 28 |
| 2 | 167 |
| 3 | 696 |
| 4 | 863 |
| 5 | 7600 |
| 6 | 16063 |
| 7 | 136104 |
| 8 | 152167 |
| 9 | 744772 |
| 10 | 3876027 |
| 11 | 4620799 |
| 12 | 253399173 |
| 13 | 258019972 |
| 14 | 1543499033 |
| 15 | 6432016104 |
| 16 | 7975515137 |
| 17 | 70236137200 |
| 18 | 148447789537 |
| 19 | 1257818453496 |
| 20 | 1406266243033 |
| 21 | 6882883425628 |
[27,28,167,696,863,7600,16063,136104,152167, 744772,3876027,4620799,253399173,258019972, 1543499033,6432016104,7975515137,70236137200, 148447789537,1257818453496,1406266243033, 6882883425628] |