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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 13 |
| 5 | 811 |
| 6 | 1635 |
| 7 | 2446 |
| 8 | 4081 |
| 9 | 10608 |
| 10 | 661777 |
| 11 | 1334162 |
| 12 | 1995939 |
| 13 | 3330101 |
| 14 | 8656141 |
| 15 | 540010843 |
| 16 | 1088677827 |
| 17 | 1628688670 |
| 18 | 2717366497 |
| 19 | 7063421664 |
| 20 | 440649509665 |
| 21 | 888362440994 |
| 22 | 1329011950659 |
| 23 | 2217374391653 |
| 24 | 5763760733965 |
| 25 | 359570539897483 |
| 26 | 724904840528931 |
[1,2,3,5,13,811,1635,2446,4081,10608,661777, 1334162,1995939,3330101,8656141,540010843, 1088677827,1628688670,2717366497,7063421664, 440649509665,888362440994,1329011950659, 2217374391653,5763760733965,359570539897483, 724904840528931] |