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 | 10 |
2 | 30 |
3 | 100 |
4 | 330 |
5 | 1100 |
6 | 3670 |
7 | 12230 |
8 | 40770 |
9 | 135900 |
10 | 453000 |
11 | 1510000 |
12 | 5033330 |
13 | 16777770 |
14 | 55925900 |
15 | 186419660 |
16 | 621398870 |
17 | 2071329570 |
18 | 6904431900 |
19 | 23014773000 |
20 | 76715910000 |
21 | 255719700000 |
22 | 852399000000 |
23 | 2841330000000 |
24 | 9471100000000 |
25 | 31570333333330 |
26 | 105234444444430 |