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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.

A168620 Table T(n,k) with the coefficient [x^k] of the polynomial 5*(x+1)^n - 4*(x^n+1) in column 0<=k<=n. T(0,0)=1.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 10
5 1
6 1
7 15
8 15
9 1
10 1
11 20
12 30
13 20
14 1
15 1
16 25
17 50
18 50
19 25
20 1
21 1
22 30
23 75
24 100
25 75
26 30
27 1
28 1
29 35
30 105
31 175
32 175
33 105
34 35
35 1
36 1
37 40
38 140
39 280
40 350
41 280
42 140
43 40
44 1
45 1
46 45
47 180
48 420
49 630
50 630
51 420
52 180
53 45
54 1
55 1
56 50
57 225
58 600
59 1050
60 1260
61 1050
62 600
63 225
64 50
65 1

List of values

[1, 1, 1, 1, 10, 1, 1, 15, 15, 1, 1, 20, 30, 20, 1, 1, 25, 50, 50, 25, 1, 1, 30, 75, 100, 75, 30, 1, 1, 35, 105, 175, 175, 105, 35, 1, 1, 40, 140, 280, 350, 280, 140, 40, 1, 1, 45, 180, 420, 630, 630, 420, 180, 45, 1, 1, 50, 225, 600, 1050, 1260, 1050, 600, 225, 50, 1]