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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 9 |
| 6 | 15 |
| 7 | 28 |
| 8 | 50 |
| 9 | 93 |
| 10 | 168 |
| 11 | 305 |
| 12 | 559 |
| 13 | 1023 |
| 14 | 1894 |
| 15 | 3506 |
| 16 | 6536 |
| 17 | 12245 |
| 18 | 22993 |
| 19 | 43383 |
| 20 | 82017 |
| 21 | 155603 |
| 22 | 295939 |
| 23 | 564155 |
| 24 | 1077862 |
| 25 | 2063680 |
| 26 | 3957800 |
| 27 | 7603544 |
| 28 | 14630834 |
| 29 | 28192741 |
| 30 | 54400018 |
| 31 | 105097555 |
| 32 | 203280210 |
| 33 | 393615795 |
| 34 | 762939100 |
| 35 | 1480206268 |
| 36 | 2874398504 |
| 37 | 5586502337 |