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 | 1 |
| 2 | 3 |
| 3 | 15 |
| 4 | 84 |
| 5 | 217 |
| 6 | 255 |
| 7 | 1710 |
| 8 | 2967 |
| 9 | 5363 |
| 10 | 11242 |
| 11 | 24066 |
| 12 | 27370 |
| 13 | 29697 |
| 14 | 29953 |
| 15 | 60977 |
| 16 | 65535 |
| 17 | 69324 |
| 18 | 103257 |
| 19 | 159761 |
| 20 | 209305 |
| 21 | 228333 |
| 22 | 446516 |
| 23 | 598559 |
| 24 | 615410 |
| 25 | 691410 |
| 26 | 1231305 |
| 27 | 1238358 |
| 28 | 1365175 |
| 29 | 1467732 |
| 30 | 1841154 |
| 31 | 1966220 |
| 32 | 2081070 |
| 33 | 2562370 |