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 | 6 |
| 2 | 21 |
| 3 | 65 |
| 4 | 133 |
| 5 | 319 |
| 6 | 481 |
| 7 | 731 |
| 8 | 1007 |
| 9 | 1403 |
| 10 | 2059 |
| 11 | 2449 |
| 12 | 3293 |
| 13 | 4141 |
| 14 | 4601 |
| 15 | 5311 |
| 16 | 6943 |
| 17 | 8201 |
| 18 | 9211 |
| 19 | 10921 |
| 20 | 12283 |
| 21 | 13213 |
| 22 | 15247 |
| 23 | 16517 |
| 24 | 19847 |
| 25 | 22213 |
| 26 | 24139 |
| 27 | 25853 |
| 28 | 28141 |
| 29 | 29539 |
| 30 | 31753 |
| 31 | 37211 |
| 32 | 40741 |
| 33 | 43429 |
| 34 | 46843 |
| 35 | 52001 |
| 36 | 54209 |
| 37 | 58561 |
| 38 | 62429 |
| 39 | 66299 |
| 40 | 70757 |
| 41 | 75359 |