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 | 3 |
| 2 | 857 |
| 3 | 71473 |
| 4 | 716917 |
| 5 | 870983 |
| 6 | 1706489 |
| 7 | 6486889 |
| 8 | 10007873 |
| 9 | 33230963 |
| 10 | 46461869 |
| 11 | 50447927 |
| 12 | 86058173 |
| 13 | 177030983 |
| 14 | 190605743 |
| 15 | 200715401 |
| 16 | 236602381 |
| 17 | 263991523 |
| 18 | 364759573 |
| 19 | 388218197 |
| 20 | 581137663 |
| 21 | 742446841 |
| 22 | 1081625359 |
| 23 | 1129738223 |