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 | 203457869 |
| 2 | 206893558 |
| 3 | 507083396 |
| 4 | 506815954 |
| 5 | 102668478970 |
| 6 | 895233580 |
| 7 | 26475394180 |
| 8 | 887692930 |
| 9 | 10708845258 |
| 10 | 13306408052 |
| 11 | 155503137452 |
| 12 | 963213572 |
| 13 | 803503960576 |
| 14 | 40349550036 |
| 15 | 203264657940 |