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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 222 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 666666 |
| 8 | 0 |
| 9 | 888888888 |
| 10 | 0 |
| 11 | 110 |
| 12 | 0 |
| 13 | 221 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 1666 |
| 18 | 0 |
| 19 | 1881 |
| 20 | 0 |
| 21 | 20202 |
| 22 | 1122 |
| 23 | 2222222222222222222222 |
| 24 | 2232 |
| 25 | 0 |
| 26 | 52 |
| 27 | 22626 |
| 28 | 2772 |
| 29 | 82882 |
| 30 | 0 |
| 31 | 333033 |
| 32 | 0 |
| 33 | 23232 |
| 34 | 0 |
| 35 | 0 |
| 36 | 0 |
| 37 | 3663 |
| 38 | 0 |
| 39 | 38883 |
| 40 | 0 |
| 41 | 444440 |
| 42 | 114114 |
| 43 | 24444 |
| 44 | 333344 |
| 45 | 0 |
| 46 | 4554 |
| 47 | 66646 |
[0,0,222,0,0,0,666666,0,888888888,0,110,0,221,0,0, 0,1666,0,1881,0,20202,1122,2222222222222222222222, 2232,0,52,22626,2772,82882,0,333033,0,23232,0,0,0, 3663,0,38883,0,444440,114114,24444,333344,0,4554, 66646] |