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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 74 |
| 3 | 135 |
| 4 | 818 |
| 5 | 1129 |
| 6 | 18938 |
| 7 | 35954 |
| 8 | 244647 |
| 9 | 334799 |
| 10 | 5995730 |
| 11 | 11448871 |
| 12 | 78439682 |
| 13 | 107528977 |
| 14 | 1929108530 |
| 15 | 3684200834 |
| 16 | 25251313255 |
| 17 | 34614832471 |
| 18 | 621134108570 |
| 19 | 1186259960295 |
| 20 | 1238420918199 |
| 21 | 8130736409714 |
| 22 | 11145780010489 |
| 23 | 200002771707050 |
| 24 | 381971282645042 |
[7,74,135,818,1129,18938,35954,244647,334799, 5995730,11448871,78439682,107528977,1929108530, 3684200834,25251313255,34614832471,621134108570, 1186259960295,1238420918199,8130736409714, 11145780010489,200002771707050,381971282645042] |