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.

A108556 Triangle, read by rows, where row n equals the inverse binomial transform of the crystal ball sequence for D_n lattice.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 4
5 4
6 1
7 12
8 30
9 20
10 1
11 24
12 120
13 192
14 96
15 1
16 40
17 330
18 940
19 1080
20 432
21 1
22 60
23 732
24 3200
25 6240
26 5568
27 1856
28 1
29 84
30 1414
31 8708
32 25200
33 37184
34 27104
35 7744
36 1
37 112
38 2480
39 20352
40 80960
41 173824
42 206080
43 126976
44 31744
45 1
46 144
47 4050
48 42588
49 221544
50 643824
51 1096032
52 1085760
53 579456
54 128768

List of values

[1, 1, 2, 1, 4, 4, 1, 12, 30, 20, 1, 24, 120, 192, 96, 1, 40, 330, 940, 1080, 432, 1, 60, 732, 3200, 6240, 5568, 1856, 1, 84, 1414, 8708, 25200, 37184, 27104, 7744, 1, 112, 2480, 20352, 80960, 173824, 206080, 126976, 31744, 1, 144, 4050, 42588, 221544, 643824, 1096032, 1085760, 579456, 128768]