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.

A251072 Number A(n,k) of tilings of a 3k X n rectangle using 3n k-ominoes of shape I; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 13
13 1
14 1
15 1
16 1
17 1
18 41
19 1
20 1
21 1
22 1
23 1
24 19
25 281
26 1
27 1
28 1
29 1
30 1
31 1
32 57
33 1183
34 1
35 1
36 1
37 1
38 1
39 1
40 26
41 121
42 6728
43 1
44 1
45 1
46 1
47 1
48 1
49 1
50 75
51 783
52 31529
53 1
54 1
55 1
56 1
57 1
58 1
59 1
60 34
61 154
62 2861
63 167089
64 1
65 1
66 1
67 1
68 1
69 1
70 1
71 1
72 95
73 269
74 8133
75 817991
76 1
77 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 1, 41, 1, 1, 1, 1, 1, 19, 281, 1, 1, 1, 1, 1, 1, 57, 1183, 1, 1, 1, 1, 1, 1, 26, 121, 6728, 1, 1, 1, 1, 1, 1, 1, 75, 783, 31529, 1, 1, 1, 1, 1, 1, 1, 34, 154, 2861, 167089, 1, 1, 1, 1, 1, 1, 1, 1, 95, 269, 8133, 817991, 1, 1]