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 | 28 |
| 3 | 220 |
| 4 | 284 |
| 5 | 496 |
| 6 | 1184 |
| 7 | 1210 |
| 8 | 2620 |
| 9 | 2924 |
| 10 | 5020 |
| 11 | 5564 |
| 12 | 6232 |
| 13 | 6368 |
| 14 | 8128 |
| 15 | 10744 |
| 16 | 10856 |
| 17 | 12285 |
| 18 | 14595 |
| 19 | 17296 |
| 20 | 18416 |
| 21 | 63020 |
| 22 | 66928 |
| 23 | 66992 |
| 24 | 67095 |
| 25 | 69615 |
| 26 | 71145 |
| 27 | 76084 |
| 28 | 79750 |
| 29 | 87633 |
| 30 | 88730 |
| 31 | 100485 |
| 32 | 122265 |
| 33 | 122368 |
| 34 | 123152 |
| 35 | 124155 |
| 36 | 139815 |
| 37 | 141664 |
| 38 | 142310 |
| 39 | 153176 |