The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 457 |
| 3 | 11788 |
| 4 | 223306 |
| 5 | 3527782 |
| 6 | 49658659 |
| 7 | 646456696 |
| 8 | 7958918644 |
| 9 | 94000489378 |
| 10 | 1075247030365 |
| 11 | 11991524116804 |
| 12 | 131012134626814 |
| 13 | 1407240945512638 |
| 14 | 14901372361780855 |
| 15 | 155885329216404592 |
| 16 | 1613748977026119016 |
| 17 | 16554187553043529402 |
| 18 | 168462466522953130609 |
[10,457,11788,223306,3527782,49658659,646456696, 7958918644,94000489378,1075247030365, 11991524116804,131012134626814,1407240945512638, 14901372361780855,155885329216404592, 1613748977026119016,16554187553043529402, 168462466522953130609] |