The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 6400 |
| 2 | 45504 |
| 3 | 336260 |
| 4 | 2763512 |
| 5 | 22791116 |
| 6 | 192579544 |
| 7 | 1628588344 |
| 8 | 13907568992 |
| 9 | 118686056384 |
| 10 | 1014383089296 |
| 11 | 8666752446464 |
| 12 | 74223588254576 |
| 13 | 635247043714680 |
| 14 | 5434110536483904 |
| 15 | 46470793076802132 |
| 16 | 398095616127903432 |
[6400,45504,336260,2763512,22791116,192579544, 1628588344,13907568992,118686056384,1014383089296, 8666752446464,74223588254576,635247043714680, 5434110536483904,46470793076802132, 398095616127903432] |