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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 11 |
| 3 | 36 |
| 4 | 271 |
| 5 | 271 |
| 6 | 271 |
| 7 | 2209 |
| 8 | 11199 |
| 9 | 13717 |
| 10 | 13717 |
| 11 | 34369 |
| 12 | 172146 |
| 13 | 172146 |
| 14 | 3094795 |
| 15 | 3094795 |
| 16 | 4308948 |
| 17 | 12762142 |
| 18 | 23902561 |
| 19 | 72084956 |
| 20 | 72084956 |
| 21 | 72084956 |
| 22 | 1052779161 |
| 23 | 1052779161 |
| 24 | 1857276773 |
| 25 | 1857276773 |
| 26 | 19398320447 |
| 27 | 57446769091 |
| 28 | 57446769091 |
| 29 | 57446769091 |
[4,11,36,271,271,271,2209,11199,13717,13717,34369, 172146,172146,3094795,3094795,4308948,12762142, 23902561,72084956,72084956,72084956,1052779161, 1052779161,1857276773,1857276773,19398320447, 57446769091,57446769091,57446769091] |