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 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 27 |
| 6 | 48 |
| 7 | 86 |
| 8 | 151 |
| 9 | 269 |
| 10 | 460 |
| 11 | 808 |
| 12 | 1386 |
| 13 | 2372 |
| 14 | 4048 |
| 15 | 6890 |
| 16 | 11661 |
| 17 | 19719 |
| 18 | 33167 |
| 19 | 55705 |
| 20 | 93288 |
| 21 | 155954 |
| 22 | 260040 |
| 23 | 432895 |
| 24 | 719252 |
| 25 | 1192989 |
| 26 | 1975724 |
| 27 | 3267513 |
| 28 | 5396171 |
| 29 | 8900534 |
| 30 | 14663096 |