The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 251 |
| 2 | 2297 |
| 3 | 21068 |
| 4 | 197133 |
| 5 | 1839599 |
| 6 | 17250758 |
| 7 | 161545837 |
| 8 | 1514840541 |
| 9 | 14197275248 |
| 10 | 133112213345 |
| 11 | 1247806255067 |
| 12 | 11698539778542 |
| 13 | 109669818666945 |
| 14 | 1028159727064977 |
| 15 | 9638825752325984 |
| 16 | 90363621330846069 |
| 17 | 847148911741824391 |
[251,2297,21068,197133,1839599,17250758,161545837, 1514840541,14197275248,133112213345,1247806255067, 11698539778542,109669818666945,1028159727064977, 9638825752325984,90363621330846069, 847148911741824391] |