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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 26 |
| 3 | 1636 |
| 4 | 191336 |
| 5 | 35909776 |
| 6 | 9877824416 |
| 7 | 3744949458496 |
| 8 | 1871860519454336 |
| 9 | 1192747133878118656 |
| 10 | 943718459840134969856 |
| 11 | 907745644208033315808256 |
| 12 | 1043182479702092427281524736 |
| 13 | 1411605714773024334343061671936 |
[1,26,1636,191336,35909776,9877824416, 3744949458496,1871860519454336, 1192747133878118656,943718459840134969856, 907745644208033315808256, 1043182479702092427281524736, 1411605714773024334343061671936] |