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 | 5381 |
| 2 | 2269733 |
| 3 | 17624813 |
| 4 | 50728129 |
| 5 | 77557187 |
| 6 | 131807699 |
| 7 | 259336153 |
| 8 | 368345293 |
| 9 | 440817757 |
| 10 | 563167303 |
| 11 | 751783477 |
| 12 | 1107276647 |
| 13 | 1170710369 |
| 14 | 1367161723 |
| 15 | 1760768239 |
| 16 | 2062666783 |
| 17 | 2323114841 |
| 18 | 2458721501 |
| 19 | 2621760397 |
| 20 | 2860139341 |