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| n | a(n) |
|---|---|
| 1 | 80 |
| 2 | 1076 |
| 3 | 17828 |
| 4 | 307144 |
| 5 | 5359892 |
| 6 | 93770308 |
| 7 | 1641741608 |
| 8 | 28748561780 |
| 9 | 503440061060 |
| 10 | 8816254627208 |
| 11 | 154390919319636 |
| 12 | 2703707386173764 |
| 13 | 47347570829880040 |
| 14 | 829155025056272692 |
| 15 | 14520239405020681988 |
[80,1076,17828,307144,5359892,93770308,1641741608, 28748561780,503440061060,8816254627208, 154390919319636,2703707386173764, 47347570829880040,829155025056272692, 14520239405020681988] |