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.

A220153 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array.

Table of values

n a(n)
1 3
2 3
3 6
4 6
5 11
6 10
7 10
8 23
9 26
10 15
11 15
12 50
13 77
14 52
15 21
16 21
17 88
18 254
19 242
20 95
21 28
22 28
23 137
24 645
25 1174
26 727
27 163
28 36
29 36
30 197
31 1413
32 4559
33 5410
34 2062
35 266
36 45
37 45
38 268
39 2841
40 16110
41 34959
42 24684
43 5493
44 416
45 55
46 55
47 350
48 5412
49 53947
50 214767
51 279304
52 108169
53 13773

List of values

[3, 3, 6, 6, 11, 10, 10, 23, 26, 15, 15, 50, 77, 52, 21, 21, 88, 254, 242, 95, 28, 28, 137, 645, 1174, 727, 163, 36, 36, 197, 1413, 4559, 5410, 2062, 266, 45, 45, 268, 2841, 16110, 34959, 24684, 5493, 416, 55, 55, 350, 5412, 53947, 214767, 279304, 108169, 13773]