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 | 5 |
| 2 | 11 |
| 3 | 31 |
| 4 | 71 |
| 5 | 281 |
| 6 | 521 |
| 7 | 911 |
| 8 | 1181 |
| 9 | 2371 |
| 10 | 2521 |
| 11 | 3391 |
| 12 | 3701 |
| 13 | 4211 |
| 14 | 4931 |
| 15 | 5051 |
| 16 | 7211 |
| 17 | 7411 |
| 18 | 8221 |
| 19 | 8431 |
| 20 | 8461 |
| 21 | 8501 |
| 22 | 8641 |
| 23 | 8951 |
| 24 | 9601 |
| 25 | 9871 |
| 26 | 10301 |
| 27 | 11981 |
| 28 | 12421 |
| 29 | 13121 |
| 30 | 13921 |
| 31 | 14591 |
| 32 | 16381 |
| 33 | 16451 |
| 34 | 16901 |
| 35 | 16931 |
| 36 | 17791 |
| 37 | 17881 |
| 38 | 19391 |
| 39 | 19751 |
| 40 | 21991 |
| 41 | 23021 |