The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 200 |
| 3 | 1657 |
| 4 | 17305 |
| 5 | 201152 |
| 6 | 2171757 |
| 7 | 24145671 |
| 8 | 273842684 |
| 9 | 3092881435 |
| 10 | 35110077545 |
| 11 | 400276960038 |
| 12 | 4567462620785 |
| 13 | 52189630360815 |
| 14 | 597005689977118 |
| 15 | 6832934080303081 |
| 16 | 78239896705464813 |
| 17 | 896178916746000410 |
[13,200,1657,17305,201152,2171757,24145671, 273842684,3092881435,35110077545,400276960038, 4567462620785,52189630360815,597005689977118, 6832934080303081,78239896705464813, 896178916746000410] |