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) |
|---|---|
| 2 | 10082 |
| 3 | 401998 |
| 4 | 19681538 |
| 5 | 1034315998 |
| 6 | 55820091938 |
| 7 | 3044533460992 |
| 8 | 166779871224962 |
| 9 | 9152970837103102 |
| 10 | 502711247500143362 |
| 11 | 27619744381029252622 |
| 12 | 1517688682641434229698 |
| 13 | 83401213534557960429502 |
| 14 | 4583249488240161816039552 |
| 15 | 251871805990373105011941118 |
| 16 | 13841645914590329223808310018 |
| 17 | 760670944425011837491619633038 |