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) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 4 |
5 | 10 |
6 | 20 |
7 | 35 |
8 | 5656 |
9 | 55524 |
10 | 352920 |
11 | 1801965 |
12 | 85636540 |
13 | 1762160686 |
14 | 22992890284 |
15 | 232001269955 |
16 | 6581012518640 |
17 | 197506018950920 |
18 | 4224661065644016 |
19 | 69931313468126169 |
20 | 1757395269147356340 |
21 | 60785516594782517650 |
22 | 1818493252905482003620 |