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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 87 |
| 3 | 774 |
| 4 | 7071 |
| 5 | 64189 |
| 6 | 588529 |
| 7 | 5400933 |
| 8 | 49414072 |
| 9 | 452274232 |
| 10 | 4141178883 |
| 11 | 37915462501 |
| 12 | 347125927592 |
| 13 | 3178043159907 |
| 14 | 29096212160166 |
| 15 | 266386963989786 |
| 16 | 2438870587989546 |
| 17 | 22328758454009391 |
| 18 | 204428063085791198 |
[7,87,774,7071,64189,588529,5400933,49414072, 452274232,4141178883,37915462501,347125927592, 3178043159907,29096212160166,266386963989786, 2438870587989546,22328758454009391, 204428063085791198] |