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) |
---|---|
11 | 11 |
12 | 135036 |
13 | 148478616 |
14 | 60841500720 |
15 | 14441439612600 |
16 | 2425616445732480 |
17 | 321683306528263680 |
18 | 36020400612748231680 |
19 | 3559225274902019923200 |
20 | 320000251320623922048000 |
21 | 26762519467151924853196800 |