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 | 6 |
| 4 | 12 |
| 5 | 22 |
| 6 | 42 |
| 7 | 79 |
| 8 | 151 |
| 9 | 291 |
| 10 | 566 |
| 11 | 1106 |
| 12 | 2175 |
| 13 | 4293 |
| 14 | 8499 |
| 15 | 16864 |
| 16 | 33523 |
| 17 | 66727 |
| 18 | 132958 |
| 19 | 265137 |
| 20 | 529050 |
| 21 | 1056169 |
| 22 | 2109282 |
| 23 | 4213710 |
| 24 | 8419697 |
| 25 | 16827079 |
| 26 | 33634489 |
| 27 | 67237513 |
| 28 | 134424624 |
| 29 | 268768414 |
| 30 | 537407062 |
| 31 | 1074605619 |
| 32 | 2148875961 |
| 33 | 4297212424 |
| 34 | 8593556211 |
| 35 | 17185713097 |
| 36 | 34369170909 |