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.

A254883 Triangle read by rows, T(n,k) = sum(j=0..2*(n-k), A254882(n-k,j)*k^j /(n-k)!), n>=0, 0<=k<=n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 1
5 1
6 0
7 2
8 2
9 1
10 0
11 6
12 9
13 3
14 1
15 0
16 24
17 48
18 24
19 4
20 1
21 0
22 120
23 300
24 200
25 50
26 5
27 1
28 0
29 720
30 2160
31 1800
32 600
33 90
34 6
35 1
36 0
37 5040
38 17640
39 17640
40 7350
41 1470
42 147
43 7
44 1
45 0
46 40320
47 161280
48 188160
49 94080
50 23520
51 3136
52 224
53 8
54 1

List of values

[1, 0, 1, 0, 1, 1, 0, 2, 2, 1, 0, 6, 9, 3, 1, 0, 24, 48, 24, 4, 1, 0, 120, 300, 200, 50, 5, 1, 0, 720, 2160, 1800, 600, 90, 6, 1, 0, 5040, 17640, 17640, 7350, 1470, 147, 7, 1, 0, 40320, 161280, 188160, 94080, 23520, 3136, 224, 8, 1]