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.

A209527 T(n,k)=Number of nXk 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.

Table of values

n a(n)
1 1
2 2
3 2
4 5
5 6
6 5
7 15
8 57
9 57
10 15
11 52
12 700
13 2027
14 700
15 52
16 203
17 10677
18 107693
19 107693
20 10677
21 203
22 877
23 193676
24 7700397
25 27323948
26 7700397
27 193676
28 877
29 4140
30 4054358
31 687132348
32 9700576474
33 9700576474
34 687132348
35 4054358
36 4140
37 21146
38 95534880

List of values

[1, 2, 2, 5, 6, 5, 15, 57, 57, 15, 52, 700, 2027, 700, 52, 203, 10677, 107693, 107693, 10677, 203, 877, 193676, 7700397, 27323948, 7700397, 193676, 877, 4140, 4054358, 687132348, 9700576474, 9700576474, 687132348, 4054358, 4140, 21146, 95534880]

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

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