The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 111 |
| 3 | 1181 |
| 4 | 13846 |
| 5 | 165110 |
| 6 | 2057843 |
| 7 | 25667276 |
| 8 | 329976721 |
| 9 | 4209948942 |
| 10 | 54835868848 |
| 11 | 706915105152 |
| 12 | 9251489612408 |
| 13 | 119830890364458 |
| 14 | 1570263366115713 |
| 15 | 20386274517258734 |
| 16 | 267147847200802821 |
| 17 | 3472830684721624629 |
[11,111,1181,13846,165110,2057843,25667276, 329976721,4209948942,54835868848,706915105152, 9251489612408,119830890364458,1570263366115713, 20386274517258734,267147847200802821, 3472830684721624629] |