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 | 54 |
3 | 108 |
4 | 486 |
5 | 2916 |
6 | 20412 |
7 | 157464 |
8 | 1299078 |
9 | 11258676 |
10 | 101328084 |
11 | 939587688 |
12 | 8926083036 |
13 | 86514343272 |
14 | 852784240824 |
15 | 8527842408240 |
16 | 86344404383430 |
17 | 883760374277460 |
18 | 9132190534200420 |
19 | 95167038198509640 |
20 | 999253901084351220 |
21 | 10563541240034570040 |