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.

A144398 Coefficients of a symmetrical polynomial set:( Pascal's triangle with central zeros) p(x,n)=If[n <= 4, Sum[Binomial[n, i]*x^i, {i, 0, n}], x^n + n*x^(n - 1) + Binomial[n, 2]*x^(n - 2) + n*x + Binomial[n, 2]*x^2 + 1].

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 3
9 3
10 1
11 1
12 4
13 6
14 4
15 1
16 1
17 5
18 10
19 10
20 5
21 1
22 1
23 6
24 15
25 0
26 15
27 6
28 1
29 1
30 7
31 21
32 0
33 0
34 21
35 7
36 1
37 1
38 8
39 28
40 0
41 0
42 0
43 28
44 8
45 1
46 1
47 9
48 36
49 0
50 0
51 0
52 0
53 36
54 9
55 1
56 1
57 10
58 45
59 0
60 0
61 0
62 0
63 0
64 45
65 10
66 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 1, 1, 6, 15, 0, 15, 6, 1, 1, 7, 21, 0, 0, 21, 7, 1, 1, 8, 28, 0, 0, 0, 28, 8, 1, 1, 9, 36, 0, 0, 0, 0, 36, 9, 1, 1, 10, 45, 0, 0, 0, 0, 0, 45, 10, 1]