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 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 11 |
| 5 | 20 |
| 6 | 37 |
| 7 | 69 |
| 8 | 127 |
| 9 | 233 |
| 10 | 428 |
| 11 | 786 |
| 12 | 1441 |
| 13 | 2643 |
| 14 | 4845 |
| 15 | 8884 |
| 16 | 16287 |
| 17 | 29861 |
| 18 | 54745 |
| 19 | 100366 |
| 20 | 184004 |
| 21 | 337341 |
| 22 | 618459 |
| 23 | 1133843 |
| 24 | 2078712 |
| 25 | 3810972 |
| 26 | 6986783 |
| 27 | 12809103 |
| 28 | 23483356 |
| 29 | 43052820 |
| 30 | 78930170 |
| 31 | 144705313 |
| 32 | 265293074 |
| 33 | 486370636 |