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| n | a(n) |
|---|---|
| 1 | 17 |
| 2 | 41 |
| 3 | 8776320587 |
| 4 | 10102729577 |
| 5 | 273373448057 |
| 6 | 1359854730821 |
| 7 | 2131528031441 |
| 8 | 2170341748697 |
| 9 | 2308235320997 |
| 10 | 3488995203761 |
| 11 | 6508136293511 |
| 12 | 9002680663721 |
| 13 | 10351316646611 |
| 14 | 10574937675011 |
| 15 | 10972430075921 |
| 16 | 14334964751111 |
| 17 | 15853264017401 |
| 18 | 27649987598537 |
| 19 | 30431463129071 |
| 20 | 35854761907577 |
[17,41,8776320587,10102729577,273373448057, 1359854730821,2131528031441,2170341748697, 2308235320997,3488995203761,6508136293511, 9002680663721,10351316646611,10574937675011, 10972430075921,14334964751111,15853264017401, 27649987598537,30431463129071,35854761907577] |