cp's OEIS Frontend

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.

A177694 Triangle t(n,m) = p(n)/ (p(m)*p(n-m) ) read by rows, where p(n>=1) = 1, -1, 2, 10, 10, -160, -2080,.. are partial products of A106852.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 -1
5 1
6 1
7 -2
8 -2
9 1
10 1
11 5
12 10
13 5
14 1
15 1
16 1
17 -5
18 -5
19 1
20 1
21 1
22 -16
23 16
24 -40
25 16
26 -16
27 1
28 1
29 13
30 208
31 -104
32 -104
33 208
34 13
35 1
36 1
37 35
38 -455
39 -3640
40 -728
41 -3640
42 -455
43 35
44 1
45 1
46 -74
47 2590
48 -16835
49 53872
50 53872
51 -16835
52 2590
53 -74
54 1
55 1
56 -31
57 -2294
58 40145
59 104377

List of values

[1, 1, 1, 1, -1, 1, 1, -2, -2, 1, 1, 5, 10, 5, 1, 1, 1, -5, -5, 1, 1, 1, -16, 16, -40, 16, -16, 1, 1, 13, 208, -104, -104, 208, 13, 1, 1, 35, -455, -3640, -728, -3640, -455, 35, 1, 1, -74, 2590, -16835, 53872, 53872, -16835, 2590, -74, 1, 1, -31, -2294, 40145, 104377]