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 | 3 |
2 | 18 |
3 | 90 |
4 | 486 |
5 | 2538 |
6 | 13446 |
7 | 70794 |
8 | 373734 |
9 | 1970730 |
10 | 10396998 |
11 | 54839754 |
12 | 289283238 |
13 | 1525926762 |
14 | 8049179142 |
15 | 42458658570 |
16 | 223966125414 |
17 | 1181402279082 |
18 | 6231800342214 |
19 | 32872228375626 |
20 | 173398289233446 |
21 | 914661608207850 |