| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 25 |
| 4 | 155 |
| 5 | 274 |
| 6 | 1691 |
| 7 | 2989 |
| 8 | 18446 |
| 9 | 32605 |
| 10 | 201215 |
| 11 | 355666 |
| 12 | 2194919 |
| 13 | 3879721 |
| 14 | 23942894 |
| 15 | 42321265 |
| 16 | 261176915 |
| 17 | 461654194 |
| 18 | 2849003171 |
| 19 | 5035874869 |
| 20 | 31077857966 |
| 21 | 54932969365 |
| 22 | 339007434455 |
| 23 | 599226788146 |
| 24 | 3698003921039 |
| 25 | 6536561700241 |
| 26 | 40339035696974 |
[1,14,25,155,274,1691,2989,18446,32605,201215, 355666,2194919,3879721,23942894,42321265, 261176915,461654194,2849003171,5035874869, 31077857966,54932969365,339007434455,599226788146, 3698003921039,6536561700241,40339035696974] |