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) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 79 |
| 3 | 916 |
| 4 | 12113 |
| 5 | 179152 |
| 6 | 2921911 |
| 7 | 51988748 |
| 8 | 1000578817 |
| 9 | 20686611736 |
| 10 | 456805020959 |
| 11 | 10721879413252 |
| 12 | 266382974861521 |
| 13 | 6980304560060384 |
| 14 | 192311632290456007 |
| 15 | 5555079068684580988 |
| 16 | 167822887344661475969 |
| 17 | 5290815252203206305832 |
| 18 | 173713426149927498289903 |