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.

A268180 T(n,k)=Number of nXk 0..k arrays with every repeated value in every row equal to, and in every column unequal to, the previous repeated value, and new values introduced in row-major sequential order.

Table of values

n a(n)
1 1
2 2
3 2
4 5
5 14
6 3
7 14
8 187
9 96
10 5
11 45
12 3552
13 9054
14 726
15 7
16 163
17 93311
18 1589578
19 494098
20 5046
21 11
22 657
23 3201247
24 479973420
25 829256141
26 25770278
27 35574
28 15
29 2910
30 137687080
31 225814538887
32 3038628153922
33 423155007379
34 1339895662
35 242406
36 23

List of values

[1, 2, 2, 5, 14, 3, 14, 187, 96, 5, 45, 3552, 9054, 726, 7, 163, 93311, 1589578, 494098, 5046, 11, 657, 3201247, 479973420, 829256141, 25770278, 35574, 15, 2910, 137687080, 225814538887, 3038628153922, 423155007379, 1339895662, 242406, 23]