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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.

A286784 Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 1
6 5
7 15
8 9
9 1
10 14
11 56
12 56
13 16
14 1
15 42
16 210
17 300
18 150
19 25
20 1
21 132
22 792
23 1485
24 1100
25 330
26 36
27 1
28 429
29 3003
30 7007
31 7007
32 3185
33 637
34 49
35 1
36 1430
37 11440
38 32032
39 40768
40 25480
41 7840
42 1120
43 64
44 1
45 4862
46 43758
47 143208
48 222768
49 179928
50 77112
51 17136
52 1836
53 81
54 1
55 16796
56 167960
57 629850
58 1162800
59 1162800
60 651168
61 203490
62 34200
63 2850
64 100
65 1

List of values

[1, 1, 1, 2, 4, 1, 5, 15, 9, 1, 14, 56, 56, 16, 1, 42, 210, 300, 150, 25, 1, 132, 792, 1485, 1100, 330, 36, 1, 429, 3003, 7007, 7007, 3185, 637, 49, 1, 1430, 11440, 32032, 40768, 25480, 7840, 1120, 64, 1, 4862, 43758, 143208, 222768, 179928, 77112, 17136, 1836, 81, 1, 16796, 167960, 629850, 1162800, 1162800, 651168, 203490, 34200, 2850, 100, 1]