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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.

A224012 T(n,k)=Number of nXk 0..2 arrays with rows nondecreasing and antidiagonals unimodal.

Table of values

n a(n)
1 3
2 6
3 9
4 10
5 36
6 27
7 15
8 100
9 216
10 81
11 21
12 225
13 868
14 1296
15 243
16 28
17 441
18 2661
19 7378
20 7776
21 729
22 36
23 784
24 6815
25 28541
26 62764
27 46656
28 2187
29 45
30 1296
31 15340
32 90051
33 297859
34 534352
35 279936
36 6561
37 55
38 2025
39 31324
40 245055
41 1108969
42 3094127
43 4549684
44 1679616

List of values

[3, 6, 9, 10, 36, 27, 15, 100, 216, 81, 21, 225, 868, 1296, 243, 28, 441, 2661, 7378, 7776, 729, 36, 784, 6815, 28541, 62764, 46656, 2187, 45, 1296, 15340, 90051, 297859, 534352, 279936, 6561, 55, 2025, 31324, 245055, 1108969, 3094127, 4549684, 1679616]

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

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