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| n | a(n) |
|---|---|
| 1 | 5189 |
| 2 | 16402513 |
| 3 | 467943439 |
| 4 | 504990803 |
| 5 | 749554903 |
| 6 | 857435519 |
| 7 | 2430292841 |
| 8 | 4486052489 |
| 9 | 6659865683 |
| 10 | 7064402537 |
| 11 | 7487094793 |
| 12 | 13947137639 |
| 13 | 21257639993 |
| 14 | 30293402521 |
| 15 | 79101562537 |
| 16 | 155450410001 |
| 17 | 169935221843 |
| 18 | 440301256709 |
| 19 | 1010752751039 |
| 20 | 1086948034639 |
[5189,16402513,467943439,504990803,749554903, 857435519,2430292841,4486052489,6659865683, 7064402537,7487094793,13947137639,21257639993, 30293402521,79101562537,155450410001,169935221843, 440301256709,1010752751039,1086948034639] |