The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 44 |
| 3 | 728 |
| 4 | 26316 |
| 5 | 2089736 |
| 6 | 364130672 |
| 7 | 139323386328 |
| 8 | 117075649276412 |
| 9 | 216113470259526948 |
| 10 | 876452156097264185188 |
| 11 | 7810016810149997712089700 |
| 12 | 152927733637636192107728580088 |
| 13 | 6580461097392848372314889891440304 |
[6,44,728,26316,2089736,364130672,139323386328, 117075649276412,216113470259526948, 876452156097264185188,7810016810149997712089700, 152927733637636192107728580088, 6580461097392848372314889891440304] |