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 | 46 |
| 2 | 2116 |
| 3 | 46613 |
| 4 | 608855 |
| 5 | 5537147 |
| 6 | 38566854 |
| 7 | 218619076 |
| 8 | 1051051942 |
| 9 | 4413826871 |
| 10 | 16548850432 |
| 11 | 56334327215 |
| 12 | 176427795883 |
| 13 | 513754867486 |
| 14 | 1403147317562 |
| 15 | 3620163947216 |
| 16 | 8876634938318 |
| 17 | 20791393840502 |
| 18 | 46723393566999 |