The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 80 |
| 2 | 1040 |
| 3 | 13600 |
| 4 | 178000 |
| 5 | 2330000 |
| 6 | 30500000 |
| 7 | 399250000 |
| 8 | 5226250000 |
| 9 | 68412500000 |
| 10 | 895531250000 |
| 11 | 11722656250000 |
| 12 | 153451562500000 |
| 13 | 2008707031250000 |
| 14 | 26294316406250000 |
| 15 | 344197070312500000 |
| 16 | 4505598144531250000 |
[80,1040,13600,178000,2330000,30500000,399250000, 5226250000,68412500000,895531250000, 11722656250000,153451562500000,2008707031250000, 26294316406250000,344197070312500000, 4505598144531250000] |