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) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 85 |
5 | 481 |
6 | 3352 |
7 | 25420 |
8 | 223393 |
9 | 2157565 |
10 | 23241244 |
11 | 272933680 |
12 | 3496821133 |
13 | 48307202761 |
14 | 717473918560 |
15 | 11381186498836 |
16 | 192155770419673 |
17 | 3438337498017781 |
18 | 65004294514876996 |
19 | 1294456866053992600 |
20 | 27081588485949257605 |