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 | 252601 |
| 2 | 3828001 |
| 3 | 82929001 |
| 4 | 366652201 |
| 5 | 8251854001 |
| 6 | 12173703001 |
| 7 | 25749237001 |
| 8 | 67495942201 |
| 9 | 82380774001 |
| 10 | 285983187601 |
| 11 | 802204143001 |
| 12 | 1039708768201 |
| 13 | 1068674250001 |
| 14 | 1158788350201 |
| 15 | 2997587784001 |
| 16 | 3236207713201 |
| 17 | 4467180843001 |
| 18 | 7902515425201 |
| 19 | 8470346587201 |