The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 11 |
| 6 | 22 |
| 7 | 33 |
| 8 | 44 |
| 9 | 121 |
| 10 | 222 |
| 11 | 101 |
| 12 | 202 |
| 13 | 454 |
| 14 | 1221 |
| 15 | 2222 |
| 16 | 1001 |
| 17 | 2002 |
| 18 | 4554 |
| 19 | 12221 |
| 20 | 22222 |
| 21 | 10001 |
| 22 | 20002 |
| 23 | 45554 |
| 24 | 122221 |
| 25 | 222222 |
| 26 | 100001 |
| 27 | 200002 |
| 28 | 455554 |
| 29 | 1222221 |
| 30 | 2222222 |
| 31 | 1000001 |
| 32 | 2000002 |
| 33 | 4555554 |
| 34 | 12222221 |
| 35 | 22222222 |
| 36 | 10000001 |
| 37 | 20000002 |
| 38 | 45555554 |
| 39 | 122222221 |
| 40 | 222222222 |
| 41 | 100000001 |
| 42 | 200000002 |
| 43 | 455555554 |
| 44 | 1222222221 |
| 45 | 2222222222 |
| 46 | 1000000001 |
[1,2,3,5,11,22,33,44,121,222,101,202,454,1221, 2222,1001,2002,4554,12221,22222,10001,20002,45554, 122221,222222,100001,200002,455554,1222221, 2222222,1000001,2000002,4555554,12222221,22222222, 10000001,20000002,45555554,122222221,222222222, 100000001,200000002,455555554,1222222221, 2222222222,1000000001] |