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 | 20 |
3 | 92 |
4 | 448 |
5 | 2160 |
6 | 10432 |
7 | 50368 |
8 | 243200 |
9 | 1174272 |
10 | 5669888 |
11 | 27376640 |
12 | 132186112 |
13 | 638251008 |
14 | 3081748480 |
15 | 14879997952 |
16 | 71846985728 |
17 | 346907934720 |
18 | 1675019681792 |
19 | 8087710466048 |
20 | 39050920591360 |
21 | 188554524229632 |
22 | 910421779283968 |
23 | 4395905214054400 |
24 | 21225307973353472 |
25 | 102484852749631488 |