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 | 22 |
4 | 90 |
5 | 434 |
6 | 2442 |
7 | 15874 |
8 | 118722 |
9 | 1009586 |
10 | 9640866 |
11 | 102243682 |
12 | 1191949122 |
13 | 15141785570 |
14 | 208068223458 |
15 | 3073613823778 |
16 | 48554040330210 |
17 | 816547584905186 |
18 | 14562214993474914 |
19 | 274463503469613538 |
20 | 5450631032885614050 |
21 | 113749623991878727394 |