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 | 53 |
| 2 | 1471 |
| 3 | 29425 |
| 4 | 496623 |
| 5 | 7518850 |
| 6 | 106030594 |
| 7 | 1421760251 |
| 8 | 18362473634 |
| 9 | 230375375227 |
| 10 | 2824280446479 |
| 11 | 33978264556380 |
| 12 | 402439152166882 |
| 13 | 4703975577244852 |
| 14 | 54365786164534232 |
| 15 | 622220063695532731 |
| 16 | 7060841638683030355 |
| 17 | 79525016215415440837 |