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| n | a(n) |
|---|---|
| 2 | 53 |
| 3 | 157 |
| 4 | 145 |
| 5 | 3055 |
| 6 | 6165 |
| 7 | 234331 |
| 8 | 584879 |
| 9 | 2599496 |
| 10 | 48785015 |
| 11 | 292856489 |
| 12 | 854612603 |
| 13 | 12206236915 |
| 14 | 8392400925 |
| 15 | 183100803621 |
| 16 | 1296977891119 |
| 17 | 15258697717317 |
| 18 | 2997253335821 |
| 19 | 79472769236347 |
| 20 | 556309528064071 |
| 21 | 5960463317677243 |
| 22 | 25033951904190895 |
| 23 | 46938653648975843 |
| 24 | 3099441423652148001 |
[53,157,145,3055,6165,234331,584879,2599496, 48785015,292856489,854612603,12206236915, 8392400925,183100803621,1296977891119, 15258697717317,2997253335821,79472769236347, 556309528064071,5960463317677243, 25033951904190895,46938653648975843, 3099441423652148001] |