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 | 1 |
| 3 | 3 |
| 4 | 7 |
| 5 | 15 |
| 6 | 29 |
| 7 | 58 |
| 8 | 118 |
| 9 | 242 |
| 10 | 493 |
| 11 | 997 |
| 12 | 2005 |
| 13 | 4024 |
| 14 | 8071 |
| 15 | 16183 |
| 16 | 32439 |
| 17 | 65003 |
| 18 | 130214 |
| 19 | 260768 |
| 20 | 522084 |
| 21 | 1045045 |
| 22 | 2091489 |
| 23 | 4185209 |
| 24 | 8373979 |
| 25 | 16753651 |
| 26 | 33516419 |
| 27 | 67047467 |
| 28 | 134118462 |
| 29 | 268274858 |
| 30 | 536611011 |
| 31 | 1073321222 |
| 32 | 2146803124 |
| 33 | 4293866550 |
| 34 | 8588154649 |