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 | 928 |
| 2 | 28500 |
| 3 | 516652 |
| 4 | 5126096 |
| 5 | 32715172 |
| 6 | 162930700 |
| 7 | 645979544 |
| 8 | 2180179840 |
| 9 | 6459129344 |
| 10 | 17247070196 |
| 11 | 42221622718 |
| 12 | 96219694788 |
| 13 | 206032371126 |
| 14 | 418179166830 |
| 15 | 810260374778 |
| 16 | 1507365435756 |
| 17 | 2704999657670 |
| 18 | 4702434212288 |