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 | 4 |
| 2 | 12 |
| 3 | 16 |
| 4 | 42 |
| 5 | 102 |
| 6 | 124 |
| 7 | 132 |
| 8 | 144 |
| 9 | 184 |
| 10 | 232 |
| 11 | 274 |
| 12 | 288 |
| 13 | 306 |
| 14 | 316 |
| 15 | 336 |
| 16 | 352 |
| 17 | 406 |
| 18 | 438 |
| 19 | 478 |
| 20 | 582 |
| 21 | 606 |
| 22 | 622 |
| 23 | 706 |
| 24 | 742 |
| 25 | 754 |
| 26 | 762 |
| 27 | 814 |
| 28 | 832 |
| 29 | 916 |
| 30 | 922 |
| 31 | 964 |
| 32 | 984 |
| 33 | 996 |
| 34 | 1026 |
| 35 | 1044 |
| 36 | 1072 |
| 37 | 1086 |
| 38 | 1096 |
| 39 | 1156 |
| 40 | 1174 |
| 41 | 1204 |
| 42 | 1258 |
| 43 | 1272 |
| 44 | 1366 |
| 45 | 1408 |
| 46 | 1416 |
| 47 | 1428 |
| 48 | 1432 |
| 49 | 1456 |