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 | 1 |
2 | -1 |
3 | 11 |
4 | 31 |
5 | 605 |
6 | 356975 |
7 | 127424725111 |
8 | 16237060566937994735039 |
9 | 263642135854412795003324875413502371940690649 |
10 | 69507175797876652622009028770643203522181284529919017784559264153993383198392412717393759 |