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 | 4 |
2 | 16 |
3 | 70 |
4 | 304 |
5 | 1330 |
6 | 5812 |
7 | 25414 |
8 | 111112 |
9 | 485818 |
10 | 2124124 |
11 | 9287278 |
12 | 40606576 |
13 | 177543394 |
14 | 776269636 |
15 | 3394069270 |
16 | 14839825624 |
17 | 64883892490 |
18 | 283690631212 |
19 | 1240375248574 |
20 | 5423269532992 |
21 | 23712060090418 |
22 | 103675797469204 |