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 | 55 |
| 3 | 125 |
| 4 | 223 |
| 5 | 349 |
| 6 | 503 |
| 7 | 685 |
| 8 | 895 |
| 9 | 1133 |
| 10 | 1399 |
| 11 | 1693 |
| 12 | 2015 |
| 13 | 2365 |
| 14 | 2743 |
| 15 | 3149 |
| 16 | 3583 |
| 17 | 4045 |
| 18 | 4535 |
| 19 | 5053 |
| 20 | 5599 |
| 21 | 6173 |
| 22 | 6775 |
| 23 | 7405 |
| 24 | 8063 |
| 25 | 8749 |
| 26 | 9463 |
| 27 | 10205 |
| 28 | 10975 |
| 29 | 11773 |
| 30 | 12599 |
| 31 | 13453 |
| 32 | 14335 |
| 33 | 15245 |
| 34 | 16183 |
| 35 | 17149 |
| 36 | 18143 |
| 37 | 19165 |
| 38 | 20215 |
| 39 | 21293 |
| 40 | 22399 |