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| n | a(n) |
|---|---|
| 7 | 7200 |
| 8 | 25562 |
| 9 | 332466 |
| 10 | 16472758 |
| 11 | 61145666 |
| 12 | 3200477798 |
| 13 | 45473543628 |
| 14 | 172043098818 |
| 15 | 2478186385762 |
| 16 | 137291966046470 |
| 17 | 7704742900338106 |
| 18 | 29569459376703894 |
| 19 | 1681851263230158754 |
| 20 | 24987922624169214866 |
| 21 | 96433670513455876108 |
| 22 | 5566902760779797458210 |
[7200,25562,332466,16472758,61145666,3200477798, 45473543628,172043098818,2478186385762, 137291966046470,7704742900338106, 29569459376703894,1681851263230158754, 24987922624169214866,96433670513455876108, 5566902760779797458210] |