The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 17 |
| 3 | 258 |
| 4 | 5771 |
| 5 | 174528 |
| 6 | 6770119 |
| 7 | 324895980 |
| 8 | 18781627193 |
| 9 | 1281239711000 |
| 10 | 101465766593553 |
| 11 | 9204346831406488 |
| 12 | 945843113150930899 |
| 13 | 109072242262950463552 |
| 14 | 14001689466624210245831 |
| 15 | 1986950788160317182000976 |
| 16 | 309800790825415866952825137 |
| 17 | 52786928631190620809803203872 |
[1,2,17,258,5771,174528,6770119,324895980, 18781627193,1281239711000,101465766593553, 9204346831406488,945843113150930899, 109072242262950463552,14001689466624210245831, 1986950788160317182000976, 309800790825415866952825137, 52786928631190620809803203872] |