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 | 0 |
| 1 | 1 |
| 2 | 6 |
| 3 | 42 |
| 4 | 52 |
| 5 | 385 |
| 6 | 414 |
| 7 | 477 |
| 8 | 506 |
| 9 | 555 |
| 10 | 4089 |
| 11 | 4180 |
| 12 | 4388 |
| 13 | 4479 |
| 14 | 4645 |
| 15 | 5095 |
| 16 | 5186 |
| 17 | 5394 |
| 18 | 5485 |
| 19 | 5651 |
| 20 | 5969 |
| 21 | 6060 |
| 22 | 6226 |
| 23 | 6502 |
| 24 | 47363 |
| 25 | 47661 |
| 26 | 48366 |
| 27 | 48664 |
| 28 | 49237 |
| 29 | 50800 |
| 30 | 51098 |
| 31 | 51803 |
| 32 | 52101 |
| 33 | 52674 |
| 34 | 53808 |
| 35 | 54106 |
| 36 | 54679 |
| 37 | 55681 |
| 38 | 59311 |
| 39 | 59609 |
| 40 | 60314 |