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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 19 |
| 10 | 91 |
| 11 | 331 |
| 12 | 991 |
| 13 | 2575 |
| 14 | 6007 |
| 15 | 12871 |
| 16 | 25759 |
| 17 | 48927 |
| 18 | 90271 |
| 19 | 168607 |
| 20 | 339151 |
| 21 | 773263 |
| 22 | 1982575 |
| 23 | 5393455 |
| 24 | 14709625 |
| 25 | 38941801 |
| 26 | 98802081 |
| 27 | 239718961 |
| 28 | 557984701 |
| 29 | 1254360781 |
| 30 | 2750444101 |
| 31 | 5961934261 |
| 32 | 12986219371 |
| 33 | 28897996843 |
| 34 | 66459189259 |
| 35 | 158256566091 |