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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 13 |
| 3 | 43 |
| 4 | 157 |
| 5 | 401 |
| 6 | 2969 |
| 7 | 7237 |
| 8 | 30697 |
| 9 | 57397 |
| 10 | 68239 |
| 11 | 576019 |
| 12 | 967019 |
| 13 | 225769 |
| 14 | 6590069 |
| 15 | 10942949 |
| 16 | 21235127 |
| 17 | 57401779 |
| 18 | 186564317 |
| 19 | 154836067 |
| 20 | 117219967 |
| 21 | 2598759227 |
| 22 | 7470538489 |
| 23 | 28594410847 |
| 24 | 59107046659 |
| 25 | 240456558467 |
| 26 | 34511350409 |
| 27 | 193861351357 |
| 28 | 249423946921 |
| 29 | 368059259143 |
[2,13,43,157,401,2969,7237,30697,57397,68239, 576019,967019,225769,6590069,10942949,21235127, 57401779,186564317,154836067,117219967,2598759227, 7470538489,28594410847,59107046659,240456558467, 34511350409,193861351357,249423946921, 368059259143] |