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.

A218354 T(n,k) = Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 n X k array.

Table of values

n a(n)
1 1
2 3
3 3
4 5
5 11
6 5
7 9
8 41
9 41
10 9
11 17
12 149
13 291
14 149
15 17
16 31
17 547
18 2069
19 2069
20 547
21 31
22 57
23 2007
24 14811
25 28661
26 14811
27 2007
28 57
29 105
30 7361
31 105913
32 401253
33 401253
34 105913
35 7361
36 105
37 193
38 27001
39 757305
40 5609569
41 10982565
42 5609569
43 757305
44 27001
45 193
46 355

List of values

[1, 3, 3, 5, 11, 5, 9, 41, 41, 9, 17, 149, 291, 149, 17, 31, 547, 2069, 2069, 547, 31, 57, 2007, 14811, 28661, 14811, 2007, 57, 105, 7361, 105913, 401253, 401253, 105913, 7361, 105, 193, 27001, 757305, 5609569, 10982565, 5609569, 757305, 27001, 193, 355]