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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8194 |
| 3 | 1610710 |
| 4 | 70322090 |
| 5 | 1359736595 |
| 6 | 15709845116 |
| 7 | 126948964044 |
| 8 | 787943896860 |
| 9 | 3990804658005 |
| 10 | 17193665419150 |
| 11 | 64919238324226 |
| 12 | 219638016608374 |
| 13 | 677231901484775 |
| 14 | 1928540559615320 |
| 15 | 5126044286105240 |
| 16 | 12827147639965656 |
| 17 | 30432829026732009 |
| 18 | 68861475279169530 |
| 19 | 149343104993864110 |
| 20 | 311744734708558690 |
| 21 | 628618742162372731 |
[1,8194,1610710,70322090,1359736595,15709845116, 126948964044,787943896860,3990804658005, 17193665419150,64919238324226,219638016608374, 677231901484775,1928540559615320,5126044286105240, 12827147639965656,30432829026732009, 68861475279169530,149343104993864110, 311744734708558690,628618742162372731] |