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 | 2139328861 |
| 2 | 2141127829 |
| 3 | 2147427883 |
| 4 | 2151255209 |
| 5 | 2156436059 |
| 6 | 2156661379 |
| 7 | 2157112043 |
| 8 | 2157337379 |
| 9 | 2157788063 |
| 10 | 2158013423 |
| 11 | 2159591171 |
| 12 | 2160267451 |
| 13 | 2164325963 |
| 14 | 2172449597 |
| 15 | 2172675359 |
| 16 | 2174029933 |
| 17 | 2176513891 |
| 18 | 2178094981 |
| 19 | 2178320909 |
| 20 | 2179450733 |