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.

A319192 Irregular triangle where T(n,k) is the coefficient of p(y) in n! * Sum_{i1 < ... < in} (x_i1 * ... * x_in), where p is power-sum symmetric functions and y is the integer partition with Heinz number A215366(n,k).

Table of values

n a(n)
1 1
2 -1
3 1
4 2
5 -3
6 1
7 -6
8 3
9 8
10 -6
11 1
12 24
13 -30
14 -20
15 15
16 20
17 -10
18 1
19 -120
20 90
21 144
22 40
23 -15
24 -90
25 -120
26 45
27 40
28 -15
29 1
30 720
31 -840
32 -504
33 -420
34 630
35 504
36 210
37 280
38 -105
39 -210
40 -420
41 105
42 70
43 -21
44 1
45 -5040
46 5760
47 3360
48 1260
49 -3360
50 2688
51 -1260
52 -4032
53 -3360
54 -1120

List of values

[1, -1, 1, 2, -3, 1, -6, 3, 8, -6, 1, 24, -30, -20, 15, 20, -10, 1, -120, 90, 144, 40, -15, -90, -120, 45, 40, -15, 1, 720, -840, -504, -420, 630, 504, 210, 280, -105, -210, -420, 105, 70, -21, 1, -5040, 5760, 3360, 1260, -3360, 2688, -1260, -4032, -3360, -1120]