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 | 4 |
| 2 | 6 |
| 3 | 14 |
| 4 | 46 |
| 5 | 58 |
| 6 | 221 |
| 7 | 445 |
| 8 | 497 |
| 9 | 1211 |
| 10 | 1561 |
| 11 | 4195 |
| 12 | 4393 |
| 13 | 6347 |
| 14 | 10717 |
| 15 | 14233 |
| 16 | 28213 |
| 17 | 31451 |
| 18 | 72965 |
| 19 | 119029 |
| 20 | 121603 |
| 21 | 124177 |
| 22 | 611261 |
| 23 | 632171 |
| 24 | 2003171 |
| 25 | 2012771 |
| 26 | 7466993 |
| 27 | 7619243 |
| 28 | 7771493 |
| 29 | 7923743 |
| 30 | 68029097 |
| 31 | 142247113 |
| 32 | 168901739 |