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.

A331327 T(n, k) = [x^k] Pochhammer(x, n-k) for n >= 0, 0 <= k <= floor(n/2). Irregular triangle read by rows.

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 0
5 1
6 0
7 2
8 1
9 0
10 6
11 3
12 0
13 24
14 11
15 1
16 0
17 120
18 50
19 6
20 0
21 720
22 274
23 35
24 1
25 0
26 5040
27 1764
28 225
29 10
30 0
31 40320
32 13068
33 1624
34 85
35 1
36 0
37 362880
38 109584
39 13132
40 735
41 15
42 0
43 3628800
44 1026576
45 118124
46 6769
47 175
48 1
49 0
50 39916800
51 10628640
52 1172700
53 67284
54 1960
55 21

List of values

[1, 0, 0, 1, 0, 1, 0, 2, 1, 0, 6, 3, 0, 24, 11, 1, 0, 120, 50, 6, 0, 720, 274, 35, 1, 0, 5040, 1764, 225, 10, 0, 40320, 13068, 1624, 85, 1, 0, 362880, 109584, 13132, 735, 15, 0, 3628800, 1026576, 118124, 6769, 175, 1, 0, 39916800, 10628640, 1172700, 67284, 1960, 21]