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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 9 |
| 4 | 36 |
| 5 | 180 |
| 6 | 186 |
| 7 | 1302 |
| 8 | 1310 |
| 9 | 11790 |
| 10 | 11800 |
| 11 | 11811 |
| 12 | 11823 |
| 13 | 11836 |
| 14 | 11850 |
| 15 | 11865 |
| 16 | 11881 |
| 17 | 11898 |
| 18 | 11916 |
| 19 | 11935 |
| 20 | 11955 |
| 21 | 11976 |
| 22 | 11998 |
| 23 | 12021 |
| 24 | 12045 |
| 25 | 12070 |
| 26 | 12096 |
| 27 | 12123 |
| 28 | 12151 |
| 29 | 12180 |
| 30 | 12210 |
| 31 | 378510 |
| 32 | 378542 |
| 33 | 378575 |
| 34 | 378609 |
| 35 | 378644 |
| 36 | 378680 |
[4,6,9,36,180,186,1302,1310,11790,11800,11811, 11823,11836,11850,11865,11881,11898,11916,11935, 11955,11976,11998,12021,12045,12070,12096,12123, 12151,12180,12210,378510,378542,378575,378609, 378644,378680] |