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 | 0 |
| 2 | 28 |
| 3 | 42 |
| 4 | 84 |
| 5 | 224 |
| 6 | 266 |
| 7 | 280 |
| 8 | 406 |
| 9 | 420 |
| 10 | 448 |
| 11 | 462 |
| 12 | 602 |
| 13 | 644 |
| 14 | 686 |
| 15 | 826 |
| 16 | 840 |
| 17 | 868 |
| 18 | 882 |
| 19 | 2002 |
| 20 | 2044 |
| 21 | 2086 |
| 22 | 2226 |
| 23 | 2240 |
| 24 | 2268 |
| 25 | 2282 |
| 26 | 2408 |
| 27 | 2422 |
| 28 | 2464 |
| 29 | 2604 |
| 30 | 2646 |
| 31 | 2660 |
| 32 | 2688 |
| 33 | 2800 |
| 34 | 2828 |
| 35 | 2842 |
| 36 | 2884 |
| 37 | 4004 |
| 38 | 4046 |
| 39 | 4060 |
| 40 | 4088 |
| 41 | 4200 |
| 42 | 4228 |
| 43 | 4242 |
| 44 | 4284 |
| 45 | 4424 |
| 46 | 4466 |
| 47 | 4480 |