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 | 3 |
| 2 | 12 |
| 3 | 27 |
| 4 | 48 |
| 5 | 75 |
| 6 | 91 |
| 7 | 108 |
| 8 | 133 |
| 9 | 192 |
| 10 | 217 |
| 11 | 243 |
| 12 | 247 |
| 13 | 259 |
| 14 | 273 |
| 15 | 300 |
| 16 | 301 |
| 17 | 343 |
| 18 | 363 |
| 19 | 364 |
| 20 | 399 |
| 21 | 403 |
| 22 | 427 |
| 23 | 432 |
| 24 | 469 |
| 25 | 481 |
| 26 | 511 |
| 27 | 532 |
| 28 | 553 |
| 29 | 559 |
| 30 | 589 |
| 31 | 651 |
| 32 | 675 |
| 33 | 679 |
| 34 | 703 |
| 35 | 721 |
| 36 | 741 |
| 37 | 763 |
| 38 | 768 |
| 39 | 777 |
| 40 | 793 |
| 41 | 817 |
| 42 | 819 |
| 43 | 867 |
| 44 | 868 |
| 45 | 871 |
| 46 | 889 |
| 47 | 903 |
| 48 | 949 |
| 49 | 972 |
| 50 | 973 |
| 51 | 988 |
| 52 | 1027 |
| 53 | 1029 |