The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 2404 |
| 3 | 2404 |
| 4 | 22994 |
| 5 | 42264 |
| 6 | 22994 |
| 7 | 218568 |
| 8 | 722548 |
| 9 | 722548 |
| 10 | 218568 |
| 11 | 2089160 |
| 12 | 12435076 |
| 13 | 21941716 |
| 14 | 12435076 |
| 15 | 2089160 |
| 16 | 19942272 |
| 17 | 215833320 |
| 18 | 674450852 |
| 19 | 674450852 |
| 20 | 215833320 |
| 21 | 19942272 |
| 22 | 190367530 |
| 23 | 3742165712 |
| 24 | 21249328546 |
[256,2404,2404,22994,42264,22994,218568,722548, 722548,218568,2089160,12435076,21941716,12435076, 2089160,19942272,215833320,674450852,674450852, 215833320,19942272,190367530,3742165712, 21249328546] |