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 | 40353607 |
| 2 | 10604499373 |
| 3 | 322687697779 |
| 4 | 3814697265625 |
| 5 | 26439622160671 |
| 6 | 129961739795077 |
| 7 | 502592611936843 |
| 8 | 1628413597910449 |
| 9 | 4605366583984375 |
| 10 | 11694146092834141 |
| 11 | 27206534396294947 |
| 12 | 58871586708267913 |
| 13 | 119851595982618319 |
| 14 | 231616946283203125 |
| 15 | 427929800129788411 |