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 | 1 |
| 2 | 11 |
| 3 | 21 |
| 4 | 31 |
| 5 | 41 |
| 6 | 51 |
| 7 | 61 |
| 8 | 71 |
| 9 | 81 |
| 10 | 118 |
| 11 | 137 |
| 12 | 165 |
| 13 | 193 |
| 14 | 257 |
| 15 | 294 |
| 16 | 376 |
| 17 | 467 |
| 18 | 567 |
| 19 | 676 |
| 20 | 785 |
| 21 | 894 |
| 22 | 1399 |
| 23 | 1778 |
| 24 | 1986 |
| 25 | 2887 |
| 26 | 3869 |
| 27 | 4869 |
| 28 | 5878 |
| 29 | 6887 |
| 30 | 7896 |
| 31 | 8959 |
| 32 | 9968 |
| 33 | 18798 |
| 34 | 26998 |
| 35 | 35999 |
| 36 | 45999 |
| 37 | 56899 |
| 38 | 66989 |
| 39 | 76998 |
| 40 | 87799 |