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 | 99 |
| 2 | 5346 |
| 3 | 208494 |
| 4 | 6567561 |
| 5 | 177324147 |
| 6 | 4255779528 |
| 7 | 93019181112 |
| 8 | 1883638417518 |
| 9 | 35789129932842 |
| 10 | 644204338791156 |
| 11 | 11068601821048044 |
| 12 | 182631930047292726 |
| 13 | 2908062270753045714 |
| 14 | 44867246463046991016 |
| 15 | 673008696945704865240 |
| 16 | 9842752192830933654135 |
| 17 | 140693457815171581056165 |
| 18 | 1969708409412402134786310 |