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 | 3 |
| 2 | 9 |
| 3 | 22 |
| 4 | 46 |
| 5 | 86 |
| 6 | 148 |
| 7 | 239 |
| 8 | 367 |
| 9 | 541 |
| 10 | 771 |
| 11 | 1068 |
| 12 | 1444 |
| 13 | 1912 |
| 14 | 2486 |
| 15 | 3181 |
| 16 | 4013 |
| 17 | 4999 |
| 18 | 6157 |
| 19 | 7506 |
| 20 | 9066 |
| 21 | 10858 |
| 22 | 12904 |
| 23 | 15227 |
| 24 | 17851 |
| 25 | 20801 |
| 26 | 24103 |
| 27 | 27784 |
| 28 | 31872 |
| 29 | 36396 |
| 30 | 41386 |
| 31 | 46873 |
| 32 | 52889 |
| 33 | 59467 |
| 34 | 66641 |
| 35 | 74446 |
| 36 | 82918 |
| 37 | 92094 |
| 38 | 102012 |
| 39 | 112711 |
| 40 | 124231 |