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.

A250432 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.

Table of values

n a(n)
1 16
2 36
3 36
4 81
5 108
6 81
7 144
8 324
9 324
10 144
11 256
12 720
13 1296
14 720
15 256
16 400
17 1600
18 3600
19 3600
20 1600
21 400
22 625
23 3000
24 10000
25 12000
26 10000
27 3000
28 625
29 900
30 5625
31 22500
32 40000
33 40000
34 22500
35 5625
36 900
37 1296
38 9450
39 50625
40 105000
41 160000
42 105000
43 50625
44 9450

List of values

[16, 36, 36, 81, 108, 81, 144, 324, 324, 144, 256, 720, 1296, 720, 256, 400, 1600, 3600, 3600, 1600, 400, 625, 3000, 10000, 12000, 10000, 3000, 625, 900, 5625, 22500, 40000, 40000, 22500, 5625, 900, 1296, 9450, 50625, 105000, 160000, 105000, 50625, 9450]