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 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 12 |
| 7 | 23 |
| 8 | 46 |
| 9 | 91 |
| 10 | 182 |
| 11 | 364 |
| 12 | 727 |
| 13 | 1454 |
| 14 | 2908 |
| 15 | 5816 |
| 16 | 11631 |
| 17 | 23262 |
| 18 | 46523 |
| 19 | 93046 |
| 20 | 186092 |
| 21 | 372183 |
| 22 | 744366 |
| 23 | 1488732 |
| 24 | 2977463 |
| 25 | 5954926 |
| 26 | 11909851 |
| 27 | 23819702 |
| 28 | 47639404 |
| 29 | 95278807 |
| 30 | 190557614 |
| 31 | 381115228 |
| 32 | 762230456 |
| 33 | 1524460911 |
| 34 | 3048921822 |
| 35 | 6097843643 |