The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 25 |
| 2 | 430 |
| 3 | 6370 |
| 4 | 87451 |
| 5 | 1148875 |
| 6 | 14682760 |
| 7 | 184262740 |
| 8 | 2283789301 |
| 9 | 28059228925 |
| 10 | 342594651490 |
| 11 | 4164091223110 |
| 12 | 50445694121551 |
| 13 | 609637726848175 |
| 14 | 7354257305858620 |
| 15 | 88598528944951480 |
| 16 | 1066309318875820201 |
[1,25,430,6370,87451,1148875,14682760,184262740, 2283789301,28059228925,342594651490,4164091223110, 50445694121551,609637726848175,7354257305858620, 88598528944951480,1066309318875820201] |