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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 3 |
| 8 | 3 |
| 9 | 4 |
| 10 | 4 |
| 11 | 5 |
| 12 | 6 |
| 13 | 8 |
| 14 | 9 |
| 15 | 11 |
| 16 | 12 |
| 17 | 15 |
| 18 | 18 |
| 19 | 22 |
| 20 | 26 |
| 21 | 31 |
| 22 | 37 |
| 23 | 46 |
| 24 | 54 |
| 25 | 66 |
| 26 | 79 |
| 27 | 97 |
| 28 | 117 |
| 29 | 141 |
| 30 | 172 |
| 31 | 209 |
| 32 | 257 |
| 33 | 309 |
| 34 | 376 |
| 35 | 457 |
| 36 | 564 |
| 37 | 687 |
| 38 | 842 |
| 39 | 1028 |
| 40 | 1266 |
| 41 | 1549 |
| 42 | 1900 |
| 43 | 2327 |
| 44 | 2861 |
| 45 | 3512 |
| 46 | 4323 |
| 47 | 5320 |
| 48 | 6542 |
| 49 | 8072 |
| 50 | 9936 |
| 51 | 12251 |
| 52 | 15104 |
| 53 | 18640 |
| 54 | 23000 |
| 55 | 28428 |