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 | 0 |
3 | 3 |
4 | 1 |
5 | 49 |
6 | 732 |
7 | 9659 |
8 | 190169 |
9 | 3225654 |
10 | 61896383 |
11 | 1360483727 |
12 | 30969769918 |
13 | 778612992660 |
14 | 20749789703573 |
15 | 579672756740101 |
16 | 17115189938667708 |
17 | 525530773660159970 |
18 | 16825686497823918869 |
19 | 561044904645283065043 |
20 | 19368002907483932784642 |