| n | a(n) |
|---|---|
| 0 | 26 |
| 1 | 27 |
| 2 | 80 |
| 3 | 107 |
| 4 | 187 |
| 5 | 481 |
| 6 | 668 |
| 7 | 1149 |
| 8 | 2966 |
| 9 | 4115 |
| 10 | 216946 |
| 11 | 221061 |
| 12 | 659068 |
| 13 | 880129 |
| 14 | 1539197 |
| 15 | 3958523 |
| 16 | 5497720 |
| 17 | 9456243 |
| 18 | 24410206 |
| 19 | 33866449 |
| 20 | 1785465554 |
| 21 | 1819332003 |
| 22 | 5424129560 |
| 23 | 7243461563 |
| 24 | 12667591123 |
| 25 | 32578643809 |
| 26 | 45246234932 |
| 27 | 77824878741 |
| 28 | 200895992414 |
[26,27,80,107,187,481,668,1149,2966,4115,216946, 221061,659068,880129,1539197,3958523,5497720, 9456243,24410206,33866449,1785465554,1819332003, 5424129560,7243461563,12667591123,32578643809, 45246234932,77824878741,200895992414] |