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 | 1 |
4 | 6 |
5 | 35 |
6 | 245 |
7 | 2044 |
8 | 19572 |
9 | 210524 |
10 | 2513760 |
11 | 33012276 |
12 | 472963876 |
13 | 7340889192 |
14 | 122703087416 |
15 | 2197496734224 |
16 | 41979155247520 |
17 | 852063971170960 |
18 | 18312093589455440 |
19 | 415420659953439840 |
20 | 9920128280950954080 |
21 | 248735658391768241280 |
22 | 6533773435848445617600 |