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 | 7 |
| 1 | 22 |
| 2 | 29 |
| 3 | 51 |
| 4 | 182 |
| 5 | 2599 |
| 6 | 7979 |
| 7 | 10578 |
| 8 | 18557 |
| 9 | 66249 |
| 10 | 946043 |
| 11 | 2904378 |
| 12 | 3850421 |
| 13 | 6754799 |
| 14 | 24114818 |
| 15 | 344362251 |
| 16 | 1057201571 |
| 17 | 1401563822 |
| 18 | 2458765393 |
| 19 | 8777860001 |
| 20 | 125348805407 |
| 21 | 384824276222 |
| 22 | 510173081629 |
| 23 | 894997357851 |
| 24 | 3195165155182 |
| 25 | 45627309530399 |