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 | 2 |
1 | 3 |
2 | 13 |
3 | 59 |
4 | 249 |
5 | 1015 |
6 | 4085 |
7 | 16371 |
8 | 65521 |
9 | 262127 |
10 | 1048557 |
11 | 4194283 |
12 | 16777193 |
13 | 67108839 |
14 | 268435429 |
15 | 1073741795 |
16 | 4294967265 |
17 | 17179869151 |
18 | 68719476701 |
19 | 274877906907 |
20 | 1099511627737 |
21 | 4398046511063 |
22 | 17592186044373 |
23 | 70368744177619 |
24 | 281474976710609 |
25 | 1125899906842575 |