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 | 21 |
| 3 | 85 |
| 4 | 341 |
| 5 | 453 |
| 6 | 909 |
| 7 | 1365 |
| 8 | 1813 |
| 9 | 5461 |
| 10 | 7281 |
| 11 | 9669 |
| 12 | 21845 |
| 13 | 29013 |
| 14 | 29125 |
| 15 | 38835 |
| 16 | 45839 |
| 17 | 54327 |
| 18 | 58197 |
| 19 | 58253 |
| 20 | 68759 |
| 21 | 77667 |
| 22 | 81491 |
| 23 | 87381 |
| 24 | 103139 |
| 25 | 116053 |
| 26 | 116501 |
| 27 | 122237 |
| 28 | 154709 |
| 29 | 154737 |
| 30 | 155341 |
| 31 | 183357 |
| 32 | 232789 |
| 33 | 233013 |
| 34 | 257551 |
| 35 | 275037 |
| 36 | 310385 |
| 37 | 310669 |
| 38 | 325965 |