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 | 5 |
| 3 | 17 |
| 4 | 19 |
| 5 | 37 |
| 6 | 67 |
| 7 | 73 |
| 8 | 131 |
| 9 | 257 |
| 10 | 521 |
| 11 | 523 |
| 12 | 577 |
| 13 | 1033 |
| 14 | 1039 |
| 15 | 1061 |
| 16 | 1063 |
| 17 | 1069 |
| 18 | 1153 |
| 19 | 1163 |
| 20 | 2053 |
| 21 | 2069 |
| 22 | 2081 |
| 23 | 2083 |
| 24 | 2089 |
| 25 | 2113 |
| 26 | 2129 |
| 27 | 2131 |
| 28 | 2137 |
| 29 | 2141 |
| 30 | 2143 |
| 31 | 2333 |
| 32 | 4099 |
| 33 | 4111 |
| 34 | 4129 |
| 35 | 4153 |
| 36 | 4177 |
| 37 | 4229 |
| 38 | 4231 |
| 39 | 4241 |
| 40 | 4243 |
| 41 | 4261 |
| 42 | 4271 |
| 43 | 4273 |
| 44 | 4637 |
| 45 | 4639 |
| 46 | 4643 |
| 47 | 4649 |
| 48 | 4651 |
| 49 | 4657 |
| 50 | 4663 |