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 | 53 |
| 3 | 131 |
| 4 | 173 |
| 5 | 233 |
| 6 | 263 |
| 7 | 563 |
| 8 | 593 |
| 9 | 653 |
| 10 | 1013 |
| 11 | 1223 |
| 12 | 1283 |
| 13 | 1601 |
| 14 | 1613 |
| 15 | 2333 |
| 16 | 2543 |
| 17 | 2963 |
| 18 | 3323 |
| 19 | 3533 |
| 20 | 3761 |
| 21 | 3911 |
| 22 | 3923 |
| 23 | 4013 |
| 24 | 4211 |
| 25 | 4253 |
| 26 | 4643 |
| 27 | 4793 |
| 28 | 5003 |
| 29 | 5273 |
| 30 | 5471 |
| 31 | 5843 |
| 32 | 5861 |
| 33 | 6263 |
| 34 | 6353 |
| 35 | 6563 |
| 36 | 6653 |
| 37 | 6863 |
| 38 | 7121 |
| 39 | 7451 |
| 40 | 7481 |
| 41 | 7541 |
| 42 | 7583 |