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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 17 |
| 5 | 24 |
| 6 | 113 |
| 7 | 363 |
| 8 | 1928 |
| 9 | 4219 |
| 10 | 6147 |
| 11 | 28807 |
| 12 | 63761 |
| 13 | 92568 |
| 14 | 526601 |
| 15 | 23263012 |
| 16 | 23789613 |
| 17 | 118421464 |
| 18 | 142211077 |
| 19 | 402843618 |
| 20 | 1753585549 |
| 21 | 2156429167 |
| 22 | 3910014716 |
| 23 | 6066443883 |
| 24 | 34242234131 |
| 25 | 485457721717 |
| 26 | 519699955848 |
[1,3,7,17,24,113,363,1928,4219,6147,28807,63761, 92568,526601,23263012,23789613,118421464, 142211077,402843618,1753585549,2156429167, 3910014716,6066443883,34242234131,485457721717, 519699955848] |