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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 41 |
| 3 | 61 |
| 4 | 461 |
| 5 | 641 |
| 6 | 661 |
| 7 | 4111 |
| 8 | 4441 |
| 9 | 6661 |
| 10 | 11161 |
| 11 | 11411 |
| 12 | 14411 |
| 13 | 14461 |
| 14 | 16111 |
| 15 | 16141 |
| 16 | 16411 |
| 17 | 16661 |
| 18 | 41141 |
| 19 | 41161 |
| 20 | 41411 |
| 21 | 41611 |
| 22 | 41641 |
| 23 | 44111 |
| 24 | 44641 |
| 25 | 46141 |
| 26 | 46411 |
| 27 | 46441 |
| 28 | 61141 |
| 29 | 61441 |
| 30 | 64661 |
| 31 | 66161 |
| 32 | 111611 |
| 33 | 111641 |
| 34 | 114161 |
| 35 | 114641 |
| 36 | 114661 |
| 37 | 116141 |
| 38 | 116411 |
[11,41,61,461,641,661,4111,4441,6661,11161,11411, 14411,14461,16111,16141,16411,16661,41141,41161, 41411,41611,41641,44111,44641,46141,46411,46441, 61141,61441,64661,66161,111611,111641,114161, 114641,114661,116141,116411] |