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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 49 |
| 2 | 2352 |
| 3 | 112896 |
| 4 | 5417832 |
| 5 | 259999488 |
| 6 | 12477267096 |
| 7 | 598778820864 |
| 8 | 28735144795560 |
| 9 | 1378987562102976 |
| 10 | 66177035471527512 |
| 11 | 3175808211876089664 |
| 12 | 152405705797427455464 |
| 13 | 7313885981134376257152 |
| 14 | 350990324575741067673624 |
[1,49,2352,112896,5417832,259999488,12477267096, 598778820864,28735144795560,1378987562102976, 66177035471527512,3175808211876089664, 152405705797427455464,7313885981134376257152, 350990324575741067673624] |