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 | 47 |
| 2 | 347 |
| 3 | 547 |
| 4 | 647 |
| 5 | 947 |
| 6 | 1447 |
| 7 | 1747 |
| 8 | 1847 |
| 9 | 2347 |
| 10 | 2447 |
| 11 | 2647 |
| 12 | 3347 |
| 13 | 3547 |
| 14 | 3847 |
| 15 | 3947 |
| 16 | 4447 |
| 17 | 4547 |
| 18 | 5147 |
| 19 | 5347 |
| 20 | 5647 |
| 21 | 6047 |
| 22 | 6247 |
| 23 | 6547 |
| 24 | 6947 |
| 25 | 7247 |
| 26 | 7547 |
| 27 | 8147 |
| 28 | 8447 |
| 29 | 8647 |
| 30 | 8747 |
| 31 | 9547 |
| 32 | 10247 |
| 33 | 10847 |
| 34 | 11047 |
| 35 | 11447 |
| 36 | 12347 |
| 37 | 12547 |
| 38 | 12647 |
| 39 | 13147 |
| 40 | 14347 |
| 41 | 14447 |
| 42 | 14747 |