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 | 11872177333 |
| 2 | 128907074146 |
| 3 | 153592049893 |
| 4 | 173277915346 |
| 5 | 218180421013 |
| 6 | 372099798262 |
| 7 | 468167023417 |
| 8 | 496310532853 |
| 9 | 499081630666 |
| 10 | 533381128933 |
| 11 | 569616671893 |
| 12 | 571632935206 |
| 13 | 579535129813 |
| 14 | 829161163813 |
| 15 | 866580745333 |
| 16 | 945276981106 |
| 17 | 945635700586 |
| 18 | 960970734706 |
| 19 | 975903758266 |