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 | 18 |
2 | 252 |
3 | 3240 |
4 | 40176 |
5 | 489888 |
6 | 5925312 |
7 | 71383680 |
8 | 858283776 |
9 | 10309483008 |
10 | 123774262272 |
11 | 1485653944320 |
12 | 17830024114176 |
13 | 213973350064128 |
14 | 2567758564933632 |
15 | 30813572964188160 |
16 | 369765696680165376 |
17 | 4437205286821429248 |
18 | 53246565001813819392 |
19 | 638959389381505843200 |
20 | 7667516328736510181376 |
21 | 92010217881788762554368 |