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| n | a(n) |
|---|---|
| 1 | 2500 |
| 2 | 22631 |
| 3 | 219438 |
| 4 | 2000385 |
| 5 | 17316309 |
| 6 | 128407497 |
| 7 | 912012350 |
| 8 | 5602735678 |
| 9 | 33436453693 |
| 10 | 176885943216 |
| 11 | 917401073689 |
| 12 | 4314850614208 |
| 13 | 20011936293206 |
| 14 | 85743645410236 |
| 15 | 363685859775159 |
| 16 | 1446109155724143 |
| 17 | 5708063204873431 |
[2500,22631,219438,2000385,17316309,128407497, 912012350,5602735678,33436453693,176885943216, 917401073689,4314850614208,20011936293206, 85743645410236,363685859775159,1446109155724143, 5708063204873431] |