The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 55 |
| 3 | 77 |
| 4 | 181 |
| 5 | 313 |
| 6 | 434 |
| 7 | 505 |
| 8 | 545 |
| 9 | 595 |
| 10 | 636 |
| 11 | 818 |
| 12 | 1001 |
| 13 | 1111 |
| 14 | 1441 |
| 15 | 1771 |
| 16 | 4334 |
| 17 | 6446 |
| 18 | 17371 |
| 19 | 17871 |
| 20 | 19691 |
| 21 | 21712 |
| 22 | 41214 |
| 23 | 42924 |
| 24 | 44444 |
| 25 | 46564 |
| 26 | 51015 |
| 27 | 65756 |
| 28 | 81818 |
| 29 | 97679 |
| 30 | 99199 |
| 31 | 108801 |
| 32 | 127721 |
| 33 | 137731 |
| 34 | 138831 |
| 35 | 139931 |
| 36 | 148841 |
| 37 | 161161 |
| 38 | 166661 |
| 39 | 171171 |
| 40 | 188881 |
[5,55,77,181,313,434,505,545,595,636,818,1001, 1111,1441,1771,4334,6446,17371,17871,19691,21712, 41214,42924,44444,46564,51015,65756,81818,97679, 99199,108801,127721,137731,138831,139931,148841, 161161,166661,171171,188881] |