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 | 1 |
3 | 2 |
4 | 5 |
5 | 13 |
6 | 40 |
7 | 126 |
8 | 409 |
9 | 1360 |
10 | 4611 |
11 | 15878 |
12 | 55384 |
13 | 195282 |
14 | 694910 |
15 | 2492454 |
16 | 9001405 |
17 | 32704855 |
18 | 119462142 |
19 | 438441266 |
20 | 1616001547 |
21 | 5979144981 |
22 | 22199682130 |
23 | 82685478702 |
24 | 308864831632 |
25 | 1156806962608 |
26 | 4343254831180 |
27 | 16343719170558 |
28 | 61630500821158 |
29 | 232854921227616 |
30 | 881378279895534 |