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) |
|---|---|
| 0 | 1 |
| 1 | 33 |
| 2 | 129 |
| 3 | 289 |
| 4 | 513 |
| 5 | 801 |
| 6 | 1153 |
| 7 | 1569 |
| 8 | 2049 |
| 9 | 2593 |
| 10 | 3201 |
| 11 | 3873 |
| 12 | 4609 |
| 13 | 5409 |
| 14 | 6273 |
| 15 | 7201 |
| 16 | 8193 |
| 17 | 9249 |
| 18 | 10369 |
| 19 | 11553 |
| 20 | 12801 |
| 21 | 14113 |
| 22 | 15489 |
| 23 | 16929 |
| 24 | 18433 |
| 25 | 20001 |
| 26 | 21633 |
| 27 | 23329 |
| 28 | 25089 |
| 29 | 26913 |
| 30 | 28801 |
| 31 | 30753 |
| 32 | 32769 |
| 33 | 34849 |
| 34 | 36993 |
| 35 | 39201 |
| 36 | 41473 |
| 37 | 43809 |
| 38 | 46209 |
| 39 | 48673 |
| 40 | 51201 |
| 41 | 53793 |