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 | 20 |
| 2 | 33 |
| 3 | 44 |
| 4 | 56 |
| 5 | 68 |
| 6 | 273 |
| 7 | 303 |
| 8 | 320 |
| 9 | 380 |
| 10 | 440 |
| 11 | 483 |
| 12 | 740 |
| 13 | 1071 |
| 14 | 1089 |
| 15 | 1101 |
| 16 | 1220 |
| 17 | 1376 |
| 18 | 1484 |
| 19 | 1635 |
| 20 | 1773 |
| 21 | 1808 |
| 22 | 1869 |
| 23 | 1940 |
| 24 | 1965 |
| 25 | 2000 |
| 26 | 2120 |
| 27 | 2144 |
| 28 | 2204 |
| 29 | 2319 |
| 30 | 2715 |
| 31 | 2763 |
| 32 | 3003 |
| 33 | 3164 |
| 34 | 3309 |
| 35 | 3500 |
| 36 | 3603 |
| 37 | 3729 |
| 38 | 3740 |
| 39 | 3753 |
| 40 | 3801 |
| 41 | 4148 |
| 42 | 4215 |
| 43 | 4323 |
| 44 | 4340 |
| 45 | 4401 |