The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1546 |
| 2 | 140893 |
| 3 | 2390116 |
| 4 | 25710385 |
| 5 | 139555230 |
| 6 | 647845357 |
| 7 | 2132283592 |
| 8 | 6483573889 |
| 9 | 16272395890 |
| 10 | 38904095581 |
| 11 | 82432596396 |
| 12 | 168949326193 |
| 13 | 318823302406 |
| 14 | 587124413485 |
| 15 | 1018357762960 |
| 16 | 1733359959937 |
| 17 | 2819557291482 |
| 18 | 4517952689629 |
[1546,140893,2390116,25710385,139555230,647845357, 2132283592,6483573889,16272395890,38904095581, 82432596396,168949326193,318823302406, 587124413485,1018357762960,1733359959937, 2819557291482,4517952689629] |