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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 73 |
| 3 | 989 |
| 4 | 12241 |
| 5 | 144245 |
| 6 | 1653913 |
| 7 | 18663629 |
| 8 | 208594081 |
| 9 | 2317594085 |
| 10 | 25654949353 |
| 11 | 283334343869 |
| 12 | 3124587089521 |
| 13 | 34425823133525 |
| 14 | 379071610510393 |
| 15 | 4172500607905709 |
| 16 | 45916496933002561 |
| 17 | 505214397985306565 |
| 18 | 5558288899894321033 |
| 19 | 61147691553229173149 |
[1,5,73,989,12241,144245,1653913,18663629, 208594081,2317594085,25654949353,283334343869, 3124587089521,34425823133525,379071610510393, 4172500607905709,45916496933002561, 505214397985306565,5558288899894321033, 61147691553229173149] |