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 | 187 |
| 2 | 1531 |
| 3 | 5977 |
| 4 | 16441 |
| 5 | 36811 |
| 6 | 71947 |
| 7 | 127681 |
| 8 | 210817 |
| 9 | 329131 |
| 10 | 491371 |
| 11 | 707257 |
| 12 | 987481 |
| 13 | 1343707 |
| 14 | 1788571 |
| 15 | 2335681 |
| 16 | 2999617 |
| 17 | 3795931 |
| 18 | 4741147 |
| 19 | 5852761 |
| 20 | 7149241 |
| 21 | 8650027 |
| 22 | 10375531 |
| 23 | 12347137 |
| 24 | 14587201 |
| 25 | 17119051 |
| 26 | 19966987 |
| 27 | 23156281 |
| 28 | 26713177 |