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.

A156599 Triangle T(n, k, m) = t(n, m)/(t(k, m)*t(n-k, m)), where t(n, k) = Product_{j=1..n} p(j, k+1), p(n, x) = Sum_{j=0..n} (-1)^j*A053122(n, j)*x^j, and m = 5, read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 -4
5 1
6 1
7 15
8 15
9 1
10 1
11 -56
12 210
13 -56
14 1
15 1
16 209
17 2926
18 2926
19 209
20 1
21 1
22 -780
23 40755
24 -152152
25 40755
26 -780
27 1
28 1
29 2911
30 567645
31 7909187
32 7909187
33 567645
34 2911
35 1
36 1
37 -10864
38 7906276
39 -411126352
40 1534382278
41 -411126352
42 7906276
43 -10864
44 1
45 1
46 40545
47 110120220
48 21370664028
49 297662820390
50 297662820390
51 21370664028
52 110120220
53 40545
54 1

List of values

[1, 1, 1, 1, -4, 1, 1, 15, 15, 1, 1, -56, 210, -56, 1, 1, 209, 2926, 2926, 209, 1, 1, -780, 40755, -152152, 40755, -780, 1, 1, 2911, 567645, 7909187, 7909187, 567645, 2911, 1, 1, -10864, 7906276, -411126352, 1534382278, -411126352, 7906276, -10864, 1, 1, 40545, 110120220, 21370664028, 297662820390, 297662820390, 21370664028, 110120220, 40545, 1]