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 | 1536160080 |
| 2 | 4911773580 |
| 3 | 25104552900 |
| 4 | 77375139660 |
| 5 | 83516678490 |
| 6 | 100070721660 |
| 7 | 150365447400 |
| 8 | 300035001630 |
| 9 | 318652145070 |
| 10 | 369822103350 |
| 11 | 377344636200 |
| 12 | 511688932650 |
| 13 | 580028072610 |
| 14 | 638663371710 |
| 15 | 701534299830 |
| 16 | 745828915650 |
| 17 | 776625236100 |
| 18 | 883476548850 |
| 19 | 925639075620 |
| 20 | 956863233690 |