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 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 18 |
| 6 | 25 |
| 7 | 29 |
| 8 | 30 |
| 9 | 39 |
| 10 | 84 |
| 11 | 91 |
| 12 | 125 |
| 13 | 130 |
| 14 | 184 |
| 15 | 195 |
| 16 | 199 |
| 17 | 203 |
| 18 | 241 |
| 19 | 245 |
| 20 | 273 |
| 21 | 281 |
| 22 | 378 |
| 23 | 552 |
| 24 | 571 |
| 25 | 653 |
| 26 | 776 |
| 27 | 901 |
| 28 | 1099 |
| 29 | 1215 |
| 30 | 1224 |
| 31 | 1235 |
| 32 | 1315 |
| 33 | 1412 |
| 34 | 1657 |
| 35 | 1942 |
| 36 | 2076 |
| 37 | 2085 |
| 38 | 2743 |
| 39 | 2745 |
| 40 | 2855 |
| 41 | 2859 |
| 42 | 3517 |
| 43 | 3717 |
| 44 | 4183 |
| 45 | 4188 |
| 46 | 4362 |
| 47 | 4547 |
| 48 | 4728 |
| 49 | 4783 |