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 | -5 |
2 | -5 |
3 | 70 |
4 | -180 |
5 | 770 |
6 | -4760 |
7 | 20840 |
8 | -68085 |
9 | 147890 |
10 | -795 |
11 | -1679855 |
12 | 8378195 |
13 | -25065005 |
14 | 56439545 |
15 | -145200415 |
16 | 612604910 |
17 | -2764023765 |
18 | 10020060660 |
19 | -28723695265 |
20 | 67618167310 |
21 | -128945409045 |
22 | 137921330680 |
23 | 375948665405 |
24 | -3167538981120 |
25 | 12823443150644 |
26 | -38103903888575 |