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| n | a(n) |
|---|---|
| 1 | 35 |
| 2 | 75 |
| 3 | 911 |
| 4 | 1707 |
| 5 | 18383 |
| 6 | 34263 |
| 7 | 366947 |
| 8 | 683751 |
| 9 | 7320755 |
| 10 | 13640955 |
| 11 | 146048351 |
| 12 | 272135547 |
| 13 | 2913646463 |
| 14 | 5429070183 |
| 15 | 58126881107 |
| 16 | 108309268311 |
| 17 | 1159623975875 |
| 18 | 2160756296235 |
| 19 | 23134352636591 |
| 20 | 43106816656587 |
| 21 | 461527428756143 |
| 22 | 859975576835703 |
| 23 | 9207414222486467 |
[35,75,911,1707,18383,34263,366947,683751,7320755, 13640955,146048351,272135547,2913646463, 5429070183,58126881107,108309268311,1159623975875, 2160756296235,23134352636591,43106816656587, 461527428756143,859975576835703,9207414222486467] |