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| n | a(n) |
|---|---|
| 0 | 40 |
| 1 | 24 |
| 2 | 19 |
| 3 | 17 |
| 4 | 16 |
| 5 | 10 |
| 6 | 23 |
| 7 | 21 |
| 8 | 92 |
| 9 | 313 |
| 10 | 155 |
| 11 | 551 |
| 12 | 2575 |
| 13 | 757 |
| 14 | 13537 |
| 15 | 5525 |
| 16 | 35133 |
| 17 | 33953 |
| 18 | 332975 |
| 19 | 355573 |
| 20 | 3157535 |
| 21 | 1571573 |
| 22 | 2732737 |
| 23 | 3775555 |
| 24 | 5737571 |
| 25 | 37332775 |
[40,24,19,17,16,10,23,21,92,313,155,551,2575,757, 13537,5525,35133,33953,332975,355573,3157535, 1571573,2732737,3775555,5737571,37332775] |