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 | 4 |
2 | 20 |
3 | 119 |
4 | 819 |
5 | 6397 |
6 | 55919 |
7 | 541144 |
8 | 5746596 |
9 | 66475311 |
10 | 832418065 |
11 | 11222752125 |
12 | 162133146877 |
13 | 2499401777680 |
14 | 40960858008040 |
15 | 711240364356155 |
16 | 13045720176453587 |
17 | 252079975222183461 |
18 | 5118581045978055067 |
19 | 108972887981432267708 |
20 | 2427417968714846394712 |
21 | 56467770394205361146187 |