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 | 2 |
2 | 6 |
3 | 16 |
4 | 154 |
5 | 4584 |
6 | 130464 |
7 | 3816304 |
8 | 123180090 |
9 | 4422532004 |
10 | 175136909492 |
11 | 7585703878304 |
12 | 356923128965592 |
13 | 18139717839708536 |
14 | 990827454743868120 |
15 | 57910782633622271952 |
16 | 3607453763547725076028 |
17 | 238660376246383050751764 |
18 | 16714929289459273370819900 |
19 | 1235688614706272361317140840 |
20 | 96170725583233854961162923028 |