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.

A223933 T(n,k)=Number of nXk 0..2 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.

Table of values

n a(n)
1 3
2 9
3 9
4 22
5 54
6 22
7 46
8 218
9 218
10 46
11 86
12 698
13 1116
14 698
15 86
16 148
17 1915
18 4498
19 4498
20 1915
21 148
22 239
23 4690
24 15791
25 21334
26 15791
27 4690
28 239
29 367
30 10511
31 49646
32 86439
33 86439
34 49646
35 10511
36 367
37 541
38 21919
39 142177
40 316136
41 386495
42 316136
43 142177
44 21919
45 541

List of values

[3, 9, 9, 22, 54, 22, 46, 218, 218, 46, 86, 698, 1116, 698, 86, 148, 1915, 4498, 4498, 1915, 148, 239, 4690, 15791, 21334, 15791, 4690, 239, 367, 10511, 49646, 86439, 86439, 49646, 10511, 367, 541, 21919, 142177, 316136, 386495, 316136, 142177, 21919, 541]