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 | 13 |
| 2 | 43 |
| 3 | 73 |
| 4 | 103 |
| 5 | 193 |
| 6 | 283 |
| 7 | 313 |
| 8 | 433 |
| 9 | 463 |
| 10 | 523 |
| 11 | 643 |
| 12 | 823 |
| 13 | 883 |
| 14 | 1033 |
| 15 | 1063 |
| 16 | 1093 |
| 17 | 1153 |
| 18 | 1303 |
| 19 | 1453 |
| 20 | 1483 |
| 21 | 1723 |
| 22 | 1873 |
| 23 | 1933 |
| 24 | 2083 |
| 25 | 2113 |
| 26 | 2143 |
| 27 | 2383 |
| 28 | 2593 |
| 29 | 2713 |
| 30 | 2803 |
| 31 | 3253 |
| 32 | 3373 |
| 33 | 3463 |
| 34 | 3583 |
| 35 | 3673 |
| 36 | 3823 |
| 37 | 3853 |
| 38 | 4003 |
| 39 | 4093 |
| 40 | 4243 |
| 41 | 4273 |
| 42 | 4423 |
| 43 | 4483 |
| 44 | 4723 |
| 45 | 4933 |
| 46 | 5023 |
| 47 | 5233 |
| 48 | 5443 |
| 49 | 5503 |
| 50 | 5653 |
| 51 | 5743 |