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 | 5 |
| 2 | 9 |
| 3 | 13 |
| 4 | 21 |
| 5 | 33 |
| 6 | 119 |
| 7 | 187 |
| 8 | 203 |
| 9 | 287 |
| 10 | 543 |
| 11 | 699 |
| 12 | 807 |
| 13 | 831 |
| 14 | 843 |
| 15 | 879 |
| 16 | 939 |
| 17 | 951 |
| 18 | 1011 |
| 19 | 1047 |
| 20 | 1059 |
| 21 | 1119 |
| 22 | 1167 |
| 23 | 1191 |
| 24 | 1263 |
| 25 | 1299 |
| 26 | 1311 |
| 27 | 1347 |
| 28 | 1383 |
| 29 | 1563 |
| 30 | 1671 |
| 31 | 1767 |
| 32 | 1769 |
| 33 | 1961 |
| 34 | 2117 |
| 35 | 2139 |
| 36 | 2173 |
| 37 | 2257 |
| 38 | 2451 |
| 39 | 2501 |
| 40 | 2581 |
| 41 | 2679 |
| 42 | 2813 |
| 43 | 2929 |
| 44 | 2967 |
| 45 | 2993 |
| 46 | 3161 |
| 47 | 3233 |
| 48 | 3243 |