The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 231 |
| 3 | 3934 |
| 4 | 67851 |
| 5 | 1177974 |
| 6 | 20531770 |
| 7 | 358788696 |
| 8 | 6281076123 |
| 9 | 110103674128 |
| 10 | 1931983053056 |
| 11 | 33926800240578 |
| 12 | 596145343139514 |
| 13 | 10480467311987778 |
| 14 | 184327560283768776 |
| 15 | 3243034966775972144 |
| 16 | 57074433199551436347 |
[1,14,231,3934,67851,1177974,20531770,358788696, 6281076123,110103674128,1931983053056, 33926800240578,596145343139514,10480467311987778, 184327560283768776,3243034966775972144, 57074433199551436347] |