The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1377040 |
| 2 | 8435180 |
| 3 | 52655600 |
| 4 | 331379292 |
| 5 | 2092722780 |
| 6 | 13234666552 |
| 7 | 83742245992 |
| 8 | 529949953516 |
| 9 | 3358192453066 |
| 10 | 21288206931304 |
| 11 | 134961924549462 |
| 12 | 855630524458102 |
| 13 | 5424416320580056 |
| 14 | 34388196239050174 |
| 15 | 218000736689229312 |
[1377040,8435180,52655600,331379292,2092722780, 13234666552,83742245992,529949953516, 3358192453066,21288206931304,134961924549462, 855630524458102,5424416320580056, 34388196239050174,218000736689229312] |