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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 121 |
| 4 | 341 |
| 5 | 14641 |
| 6 | 3751 |
| 7 | 1771561 |
| 8 | 13981 |
| 9 | 116281 |
| 10 | 453871 |
| 11 | 25937424601 |
| 12 | 153791 |
| 13 | 3138428376721 |
| 14 | 54918391 |
| 15 | 14070001 |
| 16 | 852841 |
| 17 | 45949729863572161 |
| 18 | 4767521 |
| 19 | 5559917313492231481 |
| 20 | 18608711 |
| 21 | 1702470121 |
| 22 | 804060162631 |
| 23 | 81402749386839761113321 |
| 24 | 9381251 |
| 25 | 13521270961 |
| 26 | 97291279678351 |
| 27 | 195468361 |
[1,11,121,341,14641,3751,1771561,13981,116281, 453871,25937424601,153791,3138428376721,54918391, 14070001,852841,45949729863572161,4767521, 5559917313492231481,18608711,1702470121, 804060162631,81402749386839761113321,9381251, 13521270961,97291279678351,195468361] |