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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 17 |
| 3 | 289 |
| 4 | 4063 |
| 5 | 4913 |
| 6 | 69071 |
| 7 | 83521 |
| 8 | 971057 |
| 9 | 1174207 |
| 10 | 1419857 |
| 11 | 1545589 |
| 12 | 16507969 |
| 13 | 19961519 |
| 14 | 24137569 |
| 15 | 26275013 |
| 16 | 232082623 |
| 17 | 271342117 |
| 18 | 280635473 |
| 19 | 339345823 |
| 20 | 369395771 |
| 21 | 410338673 |
| 22 | 415616459 |
| 23 | 446675221 |
| 24 | 3945404591 |
[1,17,289,4063,4913,69071,83521,971057,1174207, 1419857,1545589,16507969,19961519,24137569, 26275013,232082623,271342117,280635473,339345823, 369395771,410338673,415616459,446675221, 3945404591] |