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 | 2412134003 |
| 2 | 2742300437 |
| 3 | 141753400357 |
| 4 | 171450034753 |
| 5 | 191453004359 |
| 6 | 246200431613 |
| 7 | 267240036473 |
| 8 | 293251310059 |
| 9 | 386732002687 |
| 10 | 394530041519 |
| 11 | 426724001617 |
| 12 | 451714350037 |
| 13 | 460054236253 |
| 14 | 463724326007 |
| 15 | 491514300539 |
| 16 | 497514100579 |
| 17 | 497524121579 |
| 18 | 592632513169 |
| 19 | 642732463007 |
| 20 | 683002362181 |
| 21 | 685200265181 |