The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 290 |
| 4 | 11694 |
| 5 | 307874 |
| 6 | 14296434 |
| 7 | 386699176 |
| 8 | 18255280444 |
| 9 | 494952307400 |
| 10 | 23397688110992 |
| 11 | 634501639410480 |
| 12 | 29997930933948284 |
| 13 | 813501010455768664 |
| 14 | 38461009542931961924 |
| 15 | 1043008988814913191696 |
| 16 | 49311812528326463481148 |
[1,14,290,11694,307874,14296434,386699176, 18255280444,494952307400,23397688110992, 634501639410480,29997930933948284, 813501010455768664,38461009542931961924, 1043008988814913191696,49311812528326463481148] |