The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 4272 |
| 2 | 25974 |
| 3 | 125998 |
| 4 | 594190 |
| 5 | 2864838 |
| 6 | 14469792 |
| 7 | 71637702 |
| 8 | 345945382 |
| 9 | 1692387998 |
| 10 | 8423481016 |
| 11 | 41623347902 |
| 12 | 203854940676 |
| 13 | 1002036877470 |
| 14 | 4949498743130 |
| 15 | 24401744486702 |
| 16 | 120014028398474 |
| 17 | 590821956837072 |
| 18 | 2912112513596448 |
[4272,25974,125998,594190,2864838,14469792, 71637702,345945382,1692387998,8423481016, 41623347902,203854940676,1002036877470, 4949498743130,24401744486702,120014028398474, 590821956837072,2912112513596448] |