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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 11 |
| 7 | 11 |
| 8 | 15 |
| 9 | 13 |
| 10 | 13 |
| 11 | 15 |
| 12 | 19 |
| 13 | 5 |
| 14 | 15 |
| 15 | 11 |
| 16 | 7 |
| 17 | 11 |
| 18 | 5 |
| 19 | -13 |
| 20 | 3 |
| 21 | -17 |
| 22 | -15 |
| 23 | -7 |
| 24 | 9 |
| 25 | -49 |
| 26 | -49 |
| 27 | -51 |
| 28 | -79 |
| 29 | -61 |
| 30 | -37 |
| 31 | -61 |
| 32 | -33 |
| 33 | -105 |
| 34 | -129 |
| 35 | -113 |
| 36 | -141 |
| 37 | -183 |
| 38 | -141 |
| 39 | -157 |
| 40 | -181 |
| 41 | -189 |
| 42 | -169 |
| 43 | -275 |
| 44 | -175 |
| 45 | -199 |
| 46 | -229 |
| 47 | -217 |
| 48 | -249 |
| 49 | -389 |
| 50 | -429 |
| 51 | -413 |
| 52 | -381 |
| 53 | -419 |
| 54 | -425 |
| 55 | -453 |
| 56 | -397 |