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 | 19 |
| 2 | 14479 |
| 3 | 43609 |
| 4 | 406171 |
| 5 | 711959 |
| 6 | 1330177 |
| 7 | 2698231 |
| 8 | 3918157 |
| 9 | 18987169 |
| 10 | 26135339 |
| 11 | 194727347 |
| 12 | 269998639 |
| 13 | 975929347 |
| 14 | 5005853669 |
| 15 | 8430389621 |
| 16 | 24830247671 |
| 17 | 36372313009 |
| 18 | 69703708967 |
| 19 | 93194681917 |
| 20 | 126628534313 |
| 21 | 139478926201 |
| 22 | 304123612349 |
| 23 | 359101509211 |
| 24 | 384305009171 |
| 25 | 387550106843 |
| 26 | 400722388999 |