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| n | a(n) |
|---|---|
| 1 | 31 |
| 2 | 961 |
| 3 | 11067 |
| 4 | 177909 |
| 5 | 2563359 |
| 6 | 38542393 |
| 7 | 570085195 |
| 8 | 8487780687 |
| 9 | 126039261499 |
| 10 | 1873614472027 |
| 11 | 27839846618695 |
| 12 | 413742327695195 |
| 13 | 6148396146149603 |
| 14 | 91370604275750753 |
| 15 | 1357831649082497201 |
| 16 | 20178435819755002559 |
[31,961,11067,177909,2563359,38542393,570085195, 8487780687,126039261499,1873614472027, 27839846618695,413742327695195,6148396146149603, 91370604275750753,1357831649082497201, 20178435819755002559] |