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| n | a(n) |
|---|---|
| 1 | 66 |
| 2 | 1347 |
| 3 | 13168 |
| 4 | 69405 |
| 5 | 260616 |
| 6 | 786079 |
| 7 | 2031072 |
| 8 | 4674393 |
| 9 | 9831160 |
| 10 | 19235931 |
| 11 | 35471184 |
| 12 | 62246197 |
| 13 | 104731368 |
| 14 | 169953015 |
| 15 | 267253696 |
| 16 | 408823089 |
| 17 | 610304472 |
| 18 | 891481843 |
| 19 | 1277052720 |
| 20 | 1797491661 |
| 21 | 2490009544 |
| 22 | 3399613647 |
| 23 | 4580273568 |
[66,1347,13168,69405,260616,786079,2031072, 4674393,9831160,19235931,35471184,62246197, 104731368,169953015,267253696,408823089,610304472, 891481843,1277052720,1797491661,2490009544, 3399613647,4580273568] |