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) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 16 |
| 4 | 40 |
| 5 | 96 |
| 6 | 217 |
| 7 | 469 |
| 8 | 1011 |
| 9 | 2147 |
| 10 | 4497 |
| 11 | 9389 |
| 12 | 19489 |
| 13 | 40256 |
| 14 | 82948 |
| 15 | 170413 |
| 16 | 349158 |
| 17 | 714153 |
| 18 | 1458199 |
| 19 | 2972683 |
| 20 | 6052561 |
| 21 | 12308971 |
| 22 | 25006177 |
| 23 | 50755272 |
| 24 | 102933086 |
| 25 | 208594116 |
| 26 | 422432018 |
| 27 | 854956112 |
| 28 | 1729360940 |
| 29 | 3496259940 |
| 30 | 7065053883 |
| 31 | 14270420877 |
| 32 | 28812580857 |