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 | 287718651 |
| 2 | 553545456 |
| 3 | 746783675 |
| 4 | 972232800 |
| 5 | 1005620508 |
| 6 | 1040741042 |
| 7 | 1070652352 |
| 8 | 1074892544 |
| 9 | 1182426366 |
| 10 | 1184966816 |
| 11 | 1197332400 |
| 12 | 1243267146 |
| 13 | 1317183650 |
| 14 | 1364866263 |
| 15 | 1387455091 |
| 16 | 1429663400 |
| 17 | 1498160992 |
| 18 | 1529189818 |
| 19 | 1554833117 |
| 20 | 1558594400 |
| 21 | 1610298901 |