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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 6 |
| 4 | 34 |
| 5 | 56 |
| 6 | 66 |
| 7 | 116 |
| 8 | 334 |
| 9 | 666 |
| 10 | 1146 |
| 11 | 1156 |
| 12 | 3334 |
| 13 | 3656 |
| 14 | 6454 |
| 15 | 6666 |
| 16 | 11556 |
| 17 | 33334 |
| 18 | 36556 |
| 19 | 66454 |
| 20 | 66666 |
| 21 | 116454 |
| 22 | 333334 |
| 23 | 561556 |
| 24 | 643546 |
| 25 | 666666 |
| 26 | 1163466 |
| 27 | 1164631 |
| 28 | 3333334 |
| 29 | 3341354 |
| 30 | 3363646 |
| 31 | 3651454 |
| 32 | 3655334 |
| 33 | 5616454 |
| 34 | 6446434 |
| 35 | 6454116 |
| 36 | 6666666 |
| 37 | 11463556 |
| 38 | 11463566 |
| 39 | 33333334 |
| 40 | 56135146 |
| 41 | 64463566 |
| 42 | 64463646 |
| 43 | 66666666 |
| 44 | 115613646 |
| 45 | 116366454 |
[1,4,6,34,56,66,116,334,666,1146,1156,3334,3656, 6454,6666,11556,33334,36556,66454,66666,116454, 333334,561556,643546,666666,1163466,1164631, 3333334,3341354,3363646,3651454,3655334,5616454, 6446434,6454116,6666666,11463556,11463566, 33333334,56135146,64463566,64463646,66666666, 115613646,116366454] |