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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 58 |
| 4 | 117 |
| 5 | 216 |
| 6 | 15752 |
| 7 | 76392 |
| 8 | 3129199 |
| 9 | 10886293 |
| 10 | 12306717 |
| 11 | 61545851 |
| 12 | 167927267 |
| 13 | 197150851 |
| 14 | 212386485 |
| 15 | 759678443 |
| 16 | 5902809947 |
| 17 | 14710854746 |
| 18 | 186485968010 |
| 19 | 335913058990 |
| 20 | 347769614838 |
| 21 | 10324357504414 |
| 22 | 23560859051696 |
| 23 | 76581364219495 |
[1,13,58,117,216,15752,76392,3129199,10886293, 12306717,61545851,167927267,197150851,212386485, 759678443,5902809947,14710854746,186485968010, 335913058990,347769614838,10324357504414, 23560859051696,76581364219495] |