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 | 1 |
| 4 | 3 |
| 5 | 5 |
| 6 | 7 |
| 7 | 15 |
| 8 | 27 |
| 9 | 49 |
| 10 | 90 |
| 11 | 171 |
| 12 | 326 |
| 13 | 613 |
| 14 | 1174 |
| 15 | 2255 |
| 16 | 4333 |
| 17 | 8386 |
| 18 | 16213 |
| 19 | 31457 |
| 20 | 61097 |
| 21 | 118577 |
| 22 | 230322 |
| 23 | 447767 |
| 24 | 870570 |
| 25 | 1693887 |
| 26 | 3297343 |
| 27 | 6423347 |
| 28 | 12523562 |
| 29 | 24435171 |
| 30 | 47707012 |
| 31 | 93215393 |
| 32 | 182260604 |
| 33 | 356622869 |
| 34 | 698284551 |
| 35 | 1368195878 |
| 36 | 2682527954 |
| 37 | 5262729874 |
| 38 | 10330704931 |