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 | 11 |
| 3 | 23 |
| 4 | 43 |
| 5 | 53 |
| 6 | 71 |
| 7 | 107 |
| 8 | 229 |
| 9 | 241 |
| 10 | 269 |
| 11 | 293 |
| 12 | 313 |
| 13 | 643 |
| 14 | 701 |
| 15 | 857 |
| 16 | 883 |
| 17 | 1109 |
| 18 | 1361 |
| 19 | 1601 |
| 20 | 1693 |
| 21 | 1697 |
| 22 | 1721 |
| 23 | 1867 |
| 24 | 2267 |
| 25 | 2621 |
| 26 | 2719 |
| 27 | 2767 |
| 28 | 2789 |
| 29 | 2971 |
| 30 | 3067 |
| 31 | 3137 |
| 32 | 3169 |
| 33 | 3529 |
| 34 | 3533 |
| 35 | 3557 |
| 36 | 3739 |
| 37 | 3767 |
| 38 | 4007 |
| 39 | 4093 |
| 40 | 4139 |
| 41 | 4153 |
| 42 | 4219 |
| 43 | 4337 |
| 44 | 4423 |
| 45 | 4447 |
| 46 | 4451 |
| 47 | 4517 |
| 48 | 4663 |
| 49 | 4787 |
| 50 | 4943 |
| 51 | 5279 |
| 52 | 5387 |
| 53 | 5501 |