The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 25 |
| 1 | 26 |
| 2 | 129 |
| 3 | 155 |
| 4 | 594 |
| 5 | 4313 |
| 6 | 35098 |
| 7 | 74509 |
| 8 | 631170 |
| 9 | 4492699 |
| 10 | 14109267 |
| 11 | 18601966 |
| 12 | 88517131 |
| 13 | 107119097 |
| 14 | 5444471981 |
| 15 | 5551591078 |
| 16 | 27650836293 |
| 17 | 33202427371 |
| 18 | 127258118406 |
| 19 | 924009256213 |
| 20 | 7519332168110 |
| 21 | 15962673592433 |
[25,26,129,155,594,4313,35098,74509,631170, 4492699,14109267,18601966,88517131,107119097, 5444471981,5551591078,27650836293,33202427371, 127258118406,924009256213,7519332168110, 15962673592433] |