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.

A188826 Number of 4 X n binary arrays without the pattern 0 1 diagonally or antidiagonally.

Table of values

n a(n)
1 16
2 25
3 81
4 256
5 841
6 2704
7 8836
8 28561
9 93025
10 301401
11 980100
12 3179089
13 10329796
14 33524100
15 108889225
16 353477601
17 1147922161
18 3726858304
19 12101980081
20 39292754176
21 127587553636
22 414263438689
23 1345129081209
24 4367552437161

List of values

[16, 25, 81, 256, 841, 2704, 8836, 28561, 93025, 301401, 980100, 3179089, 10329796, 33524100, 108889225, 353477601, 1147922161, 3726858304, 12101980081, 39292754176, 127587553636, 414263438689, 1345129081209, 4367552437161]