The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1728 |
| 2 | 4137 |
| 3 | 9338 |
| 4 | 19614 |
| 5 | 38478 |
| 6 | 71088 |
| 7 | 124740 |
| 8 | 209445 |
| 9 | 338596 |
| 10 | 529731 |
| 11 | 805398 |
| 12 | 1194128 |
| 13 | 1731522 |
| 14 | 2461458 |
| 15 | 3437424 |
| 16 | 4723983 |
| 17 | 6398376 |
| 18 | 8552269 |
| 19 | 11293650 |
| 20 | 14748882 |
| 21 | 19064918 |
| 22 | 24411684 |
| 23 | 30984636 |
| 24 | 39007497 |
| 25 | 48735180 |
| 26 | 60456903 |
| 27 | 74499502 |
[1728,4137,9338,19614,38478,71088,124740,209445, 338596,529731,805398,1194128,1731522,2461458, 3437424,4723983,6398376,8552269,11293650,14748882, 19064918,24411684,30984636,39007497,48735180, 60456903,74499502] |