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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 94 |
| 3 | 281 |
| 4 | 886 |
| 5 | 16638 |
| 6 | 60757 |
| 7 | 642469 |
| 8 | 689301 |
| 9 | 784911 |
| 10 | 3631421 |
| 11 | 7144652 |
| 12 | 7967301 |
| 13 | 9428958 |
| 14 | 17741923 |
| 15 | 75060705 |
| 16 | 141521639 |
| 17 | 1060975242 |
| 18 | 3087218304 |
| 19 | 32644390236 |
| 20 | 43670299761 |
[7,94,281,886,16638,60757,642469,689301,784911, 3631421,7144652,7967301,9428958,17741923,75060705, 141521639,1060975242,3087218304,32644390236, 43670299761] |