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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 33 |
| 4 | 283 |
| 5 | 2995 |
| 6 | 37723 |
| 7 | 551047 |
| 8 | 9157923 |
| 9 | 170606547 |
| 10 | 3521075919 |
| 11 | 79741123539 |
| 12 | 1965955092517 |
| 13 | 52414187219485 |
| 14 | 1502559229282213 |
| 15 | 46087421890091145 |
| 16 | 1506033038595292467 |
| 17 | 52232959640093489043 |
| 18 | 1916263566511685329711 |
| 19 | 74142047814365044902307 |
| 20 | 3017192203838382727894241 |
| 21 | 128829022389463544587355721 |
| 22 | 5758871157244067281788041809 |
[1,1,5,33,283,2995,37723,551047,9157923,170606547, 3521075919,79741123539,1965955092517, 52414187219485,1502559229282213,46087421890091145, 1506033038595292467,52232959640093489043, 1916263566511685329711,74142047814365044902307, 3017192203838382727894241, 128829022389463544587355721, 5758871157244067281788041809] |