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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 26 |
| 2 | 312 |
| 3 | 2288 |
| 4 | 11466 |
| 5 | 41808 |
| 6 | 116688 |
| 7 | 265408 |
| 8 | 535704 |
| 9 | 1031914 |
| 10 | 1899664 |
| 11 | 3214224 |
| 12 | 5043376 |
| 13 | 7801744 |
| 14 | 12066912 |
| 15 | 17689152 |
| 16 | 24443978 |
| 17 | 34039200 |
| 18 | 48210760 |
| 19 | 64966096 |
| 20 | 83323344 |
| 21 | 109157152 |
| 22 | 145532816 |
| 23 | 185245632 |
| 24 | 227110416 |
| 25 | 284788010 |
| 26 | 363737712 |
[1,26,312,2288,11466,41808,116688,265408,535704, 1031914,1899664,3214224,5043376,7801744,12066912, 17689152,24443978,34039200,48210760,64966096, 83323344,109157152,145532816,185245632,227110416, 284788010,363737712] |