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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 10 |
| 3 | 99 |
| 4 | 124 |
| 5 | 1935 |
| 6 | 496 |
| 7 | 32319 |
| 8 | 1984 |
| 9 | 522495 |
| 10 | 7936 |
| 11 | 8381439 |
| 12 | 31744 |
| 13 | 134189055 |
| 14 | 126976 |
| 15 | 2147368959 |
| 16 | 507904 |
| 17 | 34359279615 |
| 18 | 2031616 |
| 19 | 549753978879 |
| 20 | 8126464 |
| 21 | 8796085682175 |
| 22 | 32505856 |
| 23 | 140737458995199 |
| 24 | 130023424 |
| 25 | 2251799696244735 |
| 26 | 520093696 |
| 27 | 36028796549201919 |
[1,5,10,99,124,1935,496,32319,1984,522495,7936, 8381439,31744,134189055,126976,2147368959,507904, 34359279615,2031616,549753978879,8126464, 8796085682175,32505856,140737458995199,130023424, 2251799696244735,520093696,36028796549201919] |