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| n | a(n) |
|---|---|
| 0 | 6 |
| 1 | 7 |
| 2 | 13 |
| 3 | 20 |
| 4 | 53 |
| 5 | 73 |
| 6 | 126 |
| 7 | 199 |
| 8 | 2514 |
| 9 | 2713 |
| 10 | 5227 |
| 11 | 7940 |
| 12 | 21107 |
| 13 | 29047 |
| 14 | 50154 |
| 15 | 79201 |
| 16 | 1000566 |
| 17 | 1079767 |
| 18 | 2080333 |
| 19 | 3160100 |
| 20 | 8400533 |
| 21 | 11560633 |
| 22 | 19961166 |
| 23 | 31521799 |
| 24 | 398222754 |
| 25 | 429744553 |
| 26 | 827967307 |
| 27 | 1257711860 |
[6,7,13,20,53,73,126,199,2514,2713,5227,7940, 21107,29047,50154,79201,1000566,1079767,2080333, 3160100,8400533,11560633,19961166,31521799, 398222754,429744553,827967307,1257711860] |