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 | 220 |
| 2 | 440 |
| 3 | 661 |
| 4 | 881 |
| 5 | 1105 |
| 6 | 1325 |
| 7 | 1546 |
| 8 | 1766 |
| 9 | 1991 |
| 10 | 2211 |
| 11 | 2432 |
| 12 | 2652 |
| 13 | 2876 |
| 14 | 3096 |
| 15 | 3317 |
| 16 | 3537 |
| 17 | 3771 |
| 18 | 3991 |
| 19 | 4212 |
| 20 | 4432 |
| 21 | 4656 |
| 22 | 4876 |
| 23 | 5097 |
| 24 | 5317 |
| 25 | 5542 |
| 26 | 5762 |
| 27 | 5983 |
| 28 | 6203 |
| 29 | 6427 |
| 30 | 6647 |
| 31 | 6868 |
| 32 | 7088 |
| 33 | 7326 |
| 34 | 7546 |
| 35 | 7767 |
| 36 | 7987 |
| 37 | 8211 |
| 38 | 8431 |
| 39 | 8652 |
| 40 | 8872 |
| 41 | 9097 |
| 42 | 9317 |
| 43 | 9538 |