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.

A226936 Number T(n,k) of squares of size k^2 in all tilings of an n X n square using integer-sided square tiles; triangle T(n,k), n >= 1, 1 <= k <= n, read by rows.

Table of values

n a(n)
1 1
2 4
3 1
4 29
5 4
6 1
7 312
8 69
9 4
10 1
11 5598
12 1184
13 153
14 4
15 1
16 176664
17 40078
18 4552
19 373
20 4
21 1
22 9966344
23 2311632
24 285414
25 18160
26 917
27 4
28 1
29 1018924032
30 241967774
31 30278272
32 2128226
33 74368
34 2321
35 4
36 1
37 190191337356
38 45914039784
39 5860964300
40 411308056
41 16210982
42 311784
43 5933
44 4
45 1

List of values

[1, 4, 1, 29, 4, 1, 312, 69, 4, 1, 5598, 1184, 153, 4, 1, 176664, 40078, 4552, 373, 4, 1, 9966344, 2311632, 285414, 18160, 917, 4, 1, 1018924032, 241967774, 30278272, 2128226, 74368, 2321, 4, 1, 190191337356, 45914039784, 5860964300, 411308056, 16210982, 311784, 5933, 4, 1]