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 | 839 |
| 2 | 703921 |
| 3 | 590589719 |
| 4 | 495504774241 |
| 5 | 415728505588199 |
| 6 | 348796216188498961 |
| 7 | 292640025382150628279 |
| 8 | 245524981295624377126081 |
| 9 | 205995459307028852408781959 |
| 10 | 172830190358597207170968063601 |
| 11 | 145004529710863056816442205361239 |
| 12 | 121658800427414104668995010298079521 |