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 | 619 |
| 2 | 1500619 |
| 3 | 577200619 |
| 4 | 3603000619 |
| 5 | 4931550619 |
| 6 | 12594450619 |
| 7 | 24343800619 |
| 8 | 29661450619 |
| 9 | 32625390619 |
| 10 | 65037750619 |
| 11 | 88223850619 |
| 12 | 195562950619 |
| 13 | 220172100619 |
| 14 | 586181640619 |
| 15 | 1335469140619 |
| 16 | 1659523650619 |
| 17 | 2480703750619 |