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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 8 |
| 10 | 9 |
| 11 | 22 |
| 12 | 99 |
| 13 | 123 |
| 14 | 132 |
| 15 | 213 |
| 16 | 231 |
| 17 | 312 |
| 18 | 321 |
| 19 | 1124 |
| 20 | 1137 |
| 21 | 1142 |
| 22 | 1173 |
| 23 | 1214 |
| 24 | 1241 |
| 25 | 1317 |
| 26 | 1371 |
| 27 | 1412 |
| 28 | 1421 |
| 29 | 1713 |
| 30 | 1731 |
| 31 | 2114 |
| 32 | 2141 |
| 33 | 2411 |
| 34 | 3117 |
| 35 | 3171 |
| 36 | 3344 |
| 37 | 3434 |
| 38 | 3443 |
| 39 | 3711 |
| 40 | 4112 |
| 41 | 4121 |
| 42 | 4211 |
| 43 | 4334 |
| 44 | 4343 |
| 45 | 4433 |
| 46 | 7113 |
| 47 | 7131 |
| 48 | 7311 |
| 49 | 11125 |
| 50 | 11133 |
[0,1,2,3,4,5,6,7,8,9,22,99,123,132,213,231,312, 321,1124,1137,1142,1173,1214,1241,1317,1371,1412, 1421,1713,1731,2114,2141,2411,3117,3171,3344,3434, 3443,3711,4112,4121,4211,4334,4343,4433,7113,7131, 7311,11125,11133] |