The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 26 |
| 3 | 286 |
| 4 | 2948 |
| 5 | 29140 |
| 6 | 281350 |
| 7 | 2672708 |
| 8 | 25057618 |
| 9 | 232453138 |
| 10 | 2137856646 |
| 11 | 19520180011 |
| 12 | 177142880376 |
| 13 | 1599086960917 |
| 14 | 14369091541568 |
| 15 | 128599776050102 |
| 16 | 1146851081407532 |
| 17 | 10195271184154052 |
| 18 | 90377052821887506 |
| 19 | 799110404458844621 |
[5,26,286,2948,29140,281350,2672708,25057618, 232453138,2137856646,19520180011,177142880376, 1599086960917,14369091541568,128599776050102, 1146851081407532,10195271184154052, 90377052821887506,799110404458844621] |