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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 9 |
| 4 | 35 |
| 5 | 79 |
| 6 | 1694 |
| 7 | 3467 |
| 8 | 12095 |
| 9 | 15562 |
| 10 | 121029 |
| 11 | 136591 |
| 12 | 5857851 |
| 13 | 5994442 |
| 14 | 47818945 |
| 15 | 53813387 |
| 16 | 209259106 |
| 17 | 472331599 |
| 18 | 10128222685 |
| 19 | 20728776969 |
| 20 | 72314553592 |
| 21 | 93043330561 |
| 22 | 723617867519 |
| 23 | 816661198080 |
| 24 | 35023388186879 |
| 25 | 35840049384959 |
[1,1,8,9,35,79,1694,3467,12095,15562,121029, 136591,5857851,5994442,47818945,53813387, 209259106,472331599,10128222685,20728776969, 72314553592,93043330561,723617867519,816661198080, 35023388186879,35840049384959] |