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A372378 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 12 |
| 3 | 58 |
| 4 | 315 |
| 5 | 1836 |
| 6 | 11202 |
| 7 | 70587 |
| 8 | 455715 |
| 9 | 2998687 |
| 10 | 20037408 |
| 11 | 135597168 |
| 12 | 927403927 |
| 13 | 6400393314 |
| 14 | 44516211906 |
| 15 | 311719939251 |
| 16 | 2195772726315 |
| 17 | 15548558852085 |
| 18 | 110617749092928 |
| 19 | 790281473092740 |
| 20 | 5667380226502698 |
| 21 | 40782402908527488 |
| 22 | 294388014805470744 |
[1,3,12,58,315,1836,11202,70587,455715,2998687, 20037408,135597168,927403927,6400393314, 44516211906,311719939251,2195772726315, 15548558852085,110617749092928,790281473092740, 5667380226502698,40782402908527488, 294388014805470744] |