The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 3125 |
| 2 | 851496 |
| 3 | 1671744 |
| 4 | 4044156 |
| 5 | 8821464 |
| 6 | 22093736 |
| 7 | 53801792 |
| 8 | 150157540 |
| 9 | 449755384 |
| 10 | 1236102500 |
| 11 | 3412322472 |
| 12 | 9360675328 |
| 13 | 28319517672 |
| 14 | 77705043076 |
| 15 | 219811992824 |
| 16 | 603529357560 |
| 17 | 1803987081984 |
| 18 | 4979509778764 |
| 19 | 14264973899296 |
[3125,851496,1671744,4044156,8821464,22093736, 53801792,150157540,449755384,1236102500, 3412322472,9360675328,28319517672,77705043076, 219811992824,603529357560,1803987081984, 4979509778764,14264973899296] |