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 | 57 |
1 | 242 |
2 | 996 |
3 | 4040 |
4 | 16272 |
5 | 65312 |
6 | 261696 |
7 | 1047680 |
8 | 4192512 |
9 | 16773632 |
10 | 67101696 |
11 | 268421120 |
12 | 1073713152 |
13 | 4294909952 |
14 | 17179754496 |
15 | 68719247360 |
16 | 274877448192 |
17 | 1099510710272 |
18 | 4398044676096 |
19 | 17592182374400 |
20 | 70368736837632 |