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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 8 |
| 8 | 29 |
| 9 | 85 |
| 10 | 211 |
| 11 | 464 |
| 12 | 943 |
| 13 | 1873 |
| 14 | 3914 |
| 15 | 9101 |
| 16 | 23298 |
| 17 | 61915 |
| 18 | 162283 |
| 19 | 409888 |
| 20 | 996456 |
| 21 | 2360486 |
| 22 | 5555333 |
| 23 | 13244114 |
| 24 | 32357022 |
| 25 | 80958851 |
| 26 | 205389082 |
| 27 | 522000262 |
| 28 | 1317987172 |
| 29 | 3297123652 |
| 30 | 8190326857 |
| 31 | 20302864970 |
| 32 | 50482613327 |
| 33 | 126318440989 |