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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 1 |
| 2 | 41 |
| 3 | 592 |
| 4 | 6535 |
| 5 | 89793 |
| 6 | 238462 |
| 7 | 6433832 |
| 8 | 79502884 |
| 9 | 197169399 |
| 10 | 3751058209 |
| 11 | 74944592307 |
| 12 | 816406286208 |
| 13 | 9986280348253 |
| 14 | 42117067982148 |
| 15 | 86513282306647 |
| 16 | 938446095505822 |
| 17 | 31725359408128481 |
| 18 | 117450284102701938 |
| 19 | 5211055596446229489 |
[3,1,41,592,6535,89793,238462,6433832,79502884, 197169399,3751058209,74944592307,816406286208, 9986280348253,42117067982148,86513282306647, 938446095505822,31725359408128481, 117450284102701938,5211055596446229489] |