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 | 13 |
| 3 | 29 |
| 4 | 53 |
| 5 | 137 |
| 6 | 173 |
| 7 | 293 |
| 8 | 397 |
| 9 | 593 |
| 10 | 857 |
| 11 | 977 |
| 12 | 1373 |
| 13 | 1697 |
| 14 | 1913 |
| 15 | 2213 |
| 16 | 2909 |
| 17 | 3517 |
| 18 | 3821 |
| 19 | 4493 |
| 20 | 5077 |
| 21 | 5333 |
| 22 | 6257 |
| 23 | 7213 |
| 24 | 7937 |
| 25 | 9413 |
| 26 | 10301 |
| 27 | 10613 |
| 28 | 11549 |
| 29 | 11897 |
| 30 | 13093 |
| 31 | 16193 |
| 32 | 17417 |
| 33 | 18773 |
| 34 | 19421 |
| 35 | 22397 |
| 36 | 22817 |
| 37 | 24749 |
| 38 | 26573 |
| 39 | 27893 |
| 40 | 30029 |