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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 1709 |
| 3 | 40080 |
| 4 | 994993 |
| 5 | 25248997 |
| 6 | 679103465 |
| 7 | 18167894481 |
| 8 | 485582717996 |
| 9 | 13027760526423 |
| 10 | 349547081066847 |
| 11 | 9374634814121793 |
| 12 | 251466646898614740 |
| 13 | 6745900361432771158 |
| 14 | 180960374468629585921 |
| 15 | 4854296041561377706389 |
[64,1709,40080,994993,25248997,679103465, 18167894481,485582717996,13027760526423, 349547081066847,9374634814121793, 251466646898614740,6745900361432771158, 180960374468629585921,4854296041561377706389] |