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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 9 |
| 5 | 11 |
| 6 | 13 |
| 7 | 15 |
| 8 | 81 |
| 9 | 109 |
| 10 | 141 |
| 11 | 177 |
| 12 | 729 |
| 13 | 1041 |
| 14 | 1429 |
| 15 | 1901 |
| 16 | 6561 |
| 17 | 9759 |
| 18 | 13981 |
| 19 | 19419 |
| 20 | 59049 |
| 21 | 90483 |
| 22 | 133893 |
| 23 | 192327 |
| 24 | 531441 |
| 25 | 832911 |
| 26 | 1264173 |
| 27 | 1865539 |
| 28 | 4782969 |
| 29 | 7628799 |
| 30 | 11816853 |
| 31 | 17828163 |
| 32 | 43046721 |
| 33 | 69620541 |
| 34 | 109646397 |
| 35 | 168500385 |
| 36 | 387420489 |
| 37 | 633634769 |
[1,1,1,1,9,11,13,15,81,109,141,177,729,1041,1429, 1901,6561,9759,13981,19419,59049,90483,133893, 192327,531441,832911,1264173,1865539,4782969, 7628799,11816853,17828163,43046721,69620541, 109646397,168500385,387420489,633634769] |