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.

A224374 T(n,k)=Number of nXk 0..2 arrays with rows unimodal and antidiagonals nondecreasing.

Table of values

n a(n)
1 3
2 9
3 9
4 22
5 54
6 27
7 46
8 218
9 324
10 81
11 86
12 698
13 1838
14 1944
15 243
16 148
17 1915
18 7608
19 15540
20 11664
21 729
22 239
23 4690
24 26314
25 77793
26 132236
27 69984
28 2187
29 367
30 10511
31 80819
32 311367
33 800309
34 1126072
35 419904
36 6561
37 541
38 21919
39 227112
40 1092281
41 3607078
42 8297747

List of values

[3, 9, 9, 22, 54, 27, 46, 218, 324, 81, 86, 698, 1838, 1944, 243, 148, 1915, 7608, 15540, 11664, 729, 239, 4690, 26314, 77793, 132236, 69984, 2187, 367, 10511, 80819, 311367, 800309, 1126072, 419904, 6561, 541, 21919, 227112, 1092281, 3607078, 8297747]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.