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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 12 |
| 4 | 605 |
| 5 | 1222 |
| 6 | 3049 |
| 7 | 7320 |
| 8 | 369049 |
| 9 | 745418 |
| 10 | 1859885 |
| 11 | 4465188 |
| 12 | 225119285 |
| 13 | 454703758 |
| 14 | 1134526801 |
| 15 | 2723757360 |
| 16 | 137322394801 |
| 17 | 277368546962 |
| 18 | 692059488725 |
| 19 | 1661487524412 |
| 20 | 83766435709325 |
| 21 | 169194358943062 |
| 22 | 422155153595449 |
| 23 | 1013504666133960 |
| 24 | 51097388460293449 |
[1,2,5,12,605,1222,3049,7320,369049,745418, 1859885,4465188,225119285,454703758,1134526801, 2723757360,137322394801,277368546962,692059488725, 1661487524412,83766435709325,169194358943062, 422155153595449,1013504666133960, 51097388460293449] |