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 | 0 |
| 2 | 14 |
| 3 | 147 |
| 4 | 1553 |
| 5 | 15450 |
| 6 | 155395 |
| 7 | 1549818 |
| 8 | 15498814 |
| 9 | 155079196 |
| 10 | 1550331185 |
| 11 | 15503061466 |
| 12 | 155037242668 |
| 13 | 1550370696100 |
| 14 | 15503650949671 |
| 15 | 155036854371220 |
| 16 | 1550366484701654 |
| 17 | 15503648102080675 |