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 | 29 |
| 2 | 59 |
| 3 | 239 |
| 4 | 479 |
| 5 | 15359 |
| 6 | 245759 |
| 7 | 1966079 |
| 8 | 32212254719 |
| 9 | 32985348833279 |
| 10 | 141670994486089356410879 |
| 11 | 18133887294219437620592639 |
| 12 | 72535549176877750482370559 |
| 13 | 1246151246048358630847319119012823039 |
| 14 | 638029437976759618993827388934565396479 |
| 15 | 669022355955918694246071548179450845179412479 |