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 | 0 |
| 2 | 2 |
| 3 | 113 |
| 4 | 11574 |
| 5 | 4551741 |
| 6 | 7586120602 |
| 7 | 52105131287528 |
| 8 | 1469435682255774972 |
| 9 | 168943399492409779855098 |
| 10 | 78854409689567939731003347822 |
| 11 | 148970519290227262688309540510302237 |