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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 144 |
| 3 | 1962 |
| 4 | 24091 |
| 5 | 317857 |
| 6 | 4177099 |
| 7 | 54493144 |
| 8 | 712019936 |
| 9 | 9311616740 |
| 10 | 121698578760 |
| 11 | 1590445585904 |
| 12 | 20787186128767 |
| 13 | 271689339733549 |
| 14 | 3550916434372500 |
| 15 | 46409692414371788 |
| 16 | 606566062523535434 |
[7,144,1962,24091,317857,4177099,54493144, 712019936,9311616740,121698578760,1590445585904, 20787186128767,271689339733549,3550916434372500, 46409692414371788,606566062523535434] |