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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 1709 |
| 3 | 28530 |
| 4 | 544280 |
| 5 | 9637513 |
| 6 | 175683720 |
| 7 | 3190446497 |
| 8 | 57940960729 |
| 9 | 1053163229940 |
| 10 | 19149261238587 |
| 11 | 348129370407358 |
| 12 | 6328789167931744 |
| 13 | 115060972846874058 |
| 14 | 2091893536440561148 |
| 15 | 38031724493094942507 |
[64,1709,28530,544280,9637513,175683720, 3190446497,57940960729,1053163229940, 19149261238587,348129370407358,6328789167931744, 115060972846874058,2091893536440561148, 38031724493094942507] |