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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 6 |
| 6 | 7 |
| 7 | 12 |
| 8 | 31 |
| 9 | 40 |
| 10 | 91 |
| 11 | 170 |
| 12 | 281 |
| 13 | 602 |
| 14 | 1051 |
| 15 | 1988 |
| 16 | 3907 |
| 17 | 7044 |
| 18 | 13735 |
| 19 | 25962 |
| 20 | 48643 |
| 21 | 94094 |
| 22 | 177145 |
| 23 | 338184 |
| 24 | 647791 |
| 25 | 1228812 |
| 26 | 2356927 |
| 27 | 4500678 |
| 28 | 8595913 |
| 29 | 16486966 |
| 30 | 31521543 |
| 31 | 60419872 |
| 32 | 115870879 |
| 33 | 222045160 |
| 34 | 426275647 |
| 35 | 818054654 |