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 | 620 |
| 2 | 13407 |
| 3 | 66061 |
| 4 | 266533 |
| 5 | 282401 |
| 6 | 416641 |
| 7 | 3507607 |
| 8 | 7036153 |
| 9 | 7622243 |
| 10 | 10327663 |
| 11 | 17735167 |
| 12 | 34802143 |
| 13 | 57653483 |
| 14 | 86357113 |
| 15 | 86546363 |
| 16 | 91203611 |
| 17 | 112777747 |
| 18 | 121825337 |
| 19 | 124283381 |
| 20 | 127316869 |
| 21 | 176080309 |
| 22 | 216687451 |
| 23 | 218172511 |
| 24 | 231811037 |
| 25 | 243238447 |
| 26 | 263364883 |
| 27 | 272368301 |