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 | 34 |
| 2 | 277 |
| 3 | 2919 |
| 4 | 30721 |
| 5 | 314044 |
| 6 | 3261576 |
| 7 | 33703065 |
| 8 | 348555744 |
| 9 | 3605337986 |
| 10 | 37285194645 |
| 11 | 385624285944 |
| 12 | 3988244570918 |
| 13 | 41247771387074 |
| 14 | 426598922843727 |
| 15 | 4412031119622050 |
| 16 | 45630745244822573 |
| 17 | 471928833647029372 |
| 18 | 4880850060681141219 |
| 19 | 50479427900333015968 |
| 20 | 522075580210608201142 |