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 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 19 |
| 5 | 30 |
| 6 | 44 |
| 7 | 62 |
| 8 | 85 |
| 9 | 115 |
| 10 | 155 |
| 11 | 210 |
| 12 | 288 |
| 13 | 402 |
| 14 | 573 |
| 15 | 835 |
| 16 | 1243 |
| 17 | 1886 |
| 18 | 2908 |
| 19 | 4542 |
| 20 | 7165 |
| 21 | 11387 |
| 22 | 18195 |
| 23 | 29186 |
| 24 | 46944 |
| 25 | 75650 |
| 26 | 122069 |
| 27 | 197147 |
| 28 | 318595 |
| 29 | 515070 |
| 30 | 832940 |
| 31 | 1347230 |
| 32 | 2179333 |
| 33 | 3525667 |
| 34 | 5704043 |
| 35 | 9228690 |
| 36 | 14931648 |
| 37 | 24159186 |
| 38 | 39089613 |
| 39 | 63247507 |