The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 3320 |
| 6 | 3321 |
| 7 | 3322 |
| 8 | 3323 |
| 9 | 112000 |
| 10 | 112001 |
| 11 | 112002 |
| 12 | 112003 |
| 13 | 121322 |
| 14 | 121330 |
| 15 | 211320 |
| 16 | 211321 |
| 17 | 211322 |
| 18 | 211323 |
| 19 | 320232 |
| 20 | 320302 |
| 21 | 321230 |
| 22 | 321301 |
| 23 | 322222 |
| 24 | 323221 |
| 25 | 323320 |
| 26 | 323321 |
| 27 | 323322 |
| 28 | 323323 |
| 29 | 10030333 |
| 30 | 20332101 |
| 31 | 30132120 |
| 32 | 30132121 |
[0,1,2,3,3320,3321,3322,3323,112000,112001,112002, 112003,121322,121330,211320,211321,211322,211323, 320232,320302,321230,321301,322222,323221,323320, 323321,323322,323323,10030333,20332101,30132120, 30132121] |