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 | 23 |
| 2 | 223 |
| 3 | 523 |
| 4 | 823 |
| 5 | 1123 |
| 6 | 1223 |
| 7 | 1423 |
| 8 | 1523 |
| 9 | 1723 |
| 10 | 1823 |
| 11 | 2423 |
| 12 | 3023 |
| 13 | 3323 |
| 14 | 3623 |
| 15 | 3823 |
| 16 | 3923 |
| 17 | 4423 |
| 18 | 4523 |
| 19 | 4723 |
| 20 | 5023 |
| 21 | 5323 |
| 22 | 5623 |
| 23 | 5923 |
| 24 | 6323 |
| 25 | 6823 |
| 26 | 7523 |
| 27 | 7723 |
| 28 | 7823 |
| 29 | 8123 |
| 30 | 8423 |
| 31 | 8623 |
| 32 | 8923 |
| 33 | 9323 |
| 34 | 9623 |
| 35 | 9923 |
| 36 | 10223 |
| 37 | 10723 |
| 38 | 11423 |
| 39 | 11923 |
| 40 | 12323 |
| 41 | 12823 |
| 42 | 12923 |