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 | 1 |
| 3 | 8 |
| 4 | 144 |
| 5 | 610 |
| 6 | 46368 |
| 7 | 1346269 |
| 8 | 14930352 |
| 9 | 63245986 |
| 10 | 165580141 |
| 11 | 267914296 |
| 12 | 2971215073 |
| 13 | 4807526976 |
| 14 | 7778742049 |
| 15 | 12586269025 |
| 16 | 139583862445 |
| 17 | 365435296162 |
| 18 | 591286729879 |
| 19 | 956722026041 |
| 20 | 1548008755920 |
| 21 | 2504730781961 |
| 22 | 4052739537881 |
| 23 | 6557470319842 |
| 24 | 17167680177565 |
| 25 | 27777890035288 |
| 26 | 190392490709135 |