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 | 3 |
| 3 | 3 |
| 4 | 7 |
| 5 | 13 |
| 6 | 13 |
| 7 | 29 |
| 8 | 55 |
| 9 | 55 |
| 10 | 127 |
| 11 | 217 |
| 12 | 249 |
| 13 | 505 |
| 14 | 891 |
| 15 | 1019 |
| 16 | 2047 |
| 17 | 3645 |
| 18 | 6749 |
| 19 | 6781 |
| 20 | 15087 |
| 21 | 28655 |
| 22 | 28671 |
| 23 | 65521 |
| 24 | 111921 |
| 25 | 130865 |
| 26 | 262003 |
| 27 | 458611 |
| 28 | 514551 |
| 29 | 1047229 |
| 30 | 1882877 |
| 31 | 3522525 |
| 32 | 3538919 |
| 33 | 7849959 |
| 34 | 14666991 |
| 35 | 15719929 |
| 36 | 32759801 |