This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1009 |
| 2 | 1019 |
| 3 | 1029 |
| 4 | 1039 |
| 5 | 1049 |
| 6 | 1059 |
| 7 | 1069 |
| 8 | 1079 |
| 9 | 1089 |
| 10 | 1091 |
| 11 | 1092 |
| 12 | 1093 |
| 13 | 1094 |
| 14 | 1095 |
| 15 | 1096 |
| 16 | 1097 |
| 17 | 1098 |
| 18 | 1099 |
| 19 | 1109 |
| 20 | 1209 |
| 21 | 1309 |
| 22 | 1409 |
| 23 | 1509 |
| 24 | 1609 |
| 25 | 1709 |
| 26 | 1809 |
| 27 | 1901 |
| 28 | 1902 |
| 29 | 1903 |
| 30 | 1904 |
| 31 | 1905 |
| 32 | 1906 |
| 33 | 1907 |
| 34 | 1908 |
| 35 | 1909 |
| 36 | 2009 |
| 37 | 2019 |
| 38 | 2029 |
| 39 | 2039 |