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.

A117753 Triangle T(n, k) = f(n, 1 + (n mod 3))*f(k, 1 + (k mod 3)) mod n!, read by rows (see formula for f(n, k)).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 1
7 1
8 2
9 1
10 6
11 6
12 12
13 6
14 12
15 0
16 0
17 0
18 0
19 0
20 0
21 24
22 24
23 48
24 24
25 144
26 0
27 576
28 210
29 210
30 420
31 210
32 1260
33 0
34 0
35 3780
36 0
37 0
38 0
39 0
40 0
41 0
42 0
43 0
44 0
45 1728
46 1728
47 3456
48 1728
49 10368
50 207360
51 41472
52 0
53 0
54 82944
55 210
56 210
57 420
58 210
59 1260
60 25200
61 5040
62 44100
63 1209600
64 362880
65 44100

List of values

[0, 0, 0, 0, 0, 0, 1, 1, 2, 1, 6, 6, 12, 6, 12, 0, 0, 0, 0, 0, 0, 24, 24, 48, 24, 144, 0, 576, 210, 210, 420, 210, 1260, 0, 0, 3780, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1728, 1728, 3456, 1728, 10368, 207360, 41472, 0, 0, 82944, 210, 210, 420, 210, 1260, 25200, 5040, 44100, 1209600, 362880, 44100]