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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.

A298854 Characteristic polynomials of Jacobi coordinates. Triangle read by rows, T(n, k) for 0 <= k <= n.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 3
5 2
6 6
7 11
8 11
9 6
10 24
11 50
12 61
13 50
14 24
15 120
16 274
17 379
18 379
19 274
20 120
21 720
22 1764
23 2668
24 3023
25 2668
26 1764
27 720
28 5040
29 13068
30 21160
31 26193
32 26193
33 21160
34 13068
35 5040
36 40320
37 109584
38 187388
39 248092
40 270961
41 248092
42 187388
43 109584
44 40320
45 362880
46 1026576
47 1836396
48 2565080
49 2995125
50 2995125
51 2565080
52 1836396
53 1026576
54 362880

List of values

[1, 1, 1, 2, 3, 2, 6, 11, 11, 6, 24, 50, 61, 50, 24, 120, 274, 379, 379, 274, 120, 720, 1764, 2668, 3023, 2668, 1764, 720, 5040, 13068, 21160, 26193, 26193, 21160, 13068, 5040, 40320, 109584, 187388, 248092, 270961, 248092, 187388, 109584, 40320, 362880, 1026576, 1836396, 2565080, 2995125, 2995125, 2565080, 1836396, 1026576, 362880]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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