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 | 2894219 |
| 2 | 60041519 |
| 3 | 64523969 |
| 4 | 242024369 |
| 5 | 407874179 |
| 6 | 1092040949 |
| 7 | 1092075389 |
| 8 | 1674689729 |
| 9 | 2281060319 |
| 10 | 5035134509 |
| 11 | 5329406669 |
| 12 | 5683382879 |
| 13 | 5792424329 |
| 14 | 6000216809 |
| 15 | 6380217479 |
| 16 | 10409580719 |
| 17 | 11488703939 |
| 18 | 13745865209 |
| 19 | 14181824369 |
| 20 | 14904963149 |
| 21 | 15002412599 |
| 22 | 15412603919 |