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.

A284451 Number of n X 4 0..1 arrays with the number of 1's king-move adjacent to some 0 one less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 2
2 0
3 250
4 3384
5 54248
6 824052
7 12957944
8 203401448
9 3209101642
10 50702668880
11 801990075576
12 12692871462160
13 200953195066764
14 3182000912440584
15 50388819126999402
16 797940889459632096
17 12635596604122356028

List of values

[2, 0, 250, 3384, 54248, 824052, 12957944, 203401448, 3209101642, 50702668880, 801990075576, 12692871462160, 200953195066764, 3182000912440584, 50388819126999402, 797940889459632096, 12635596604122356028]

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

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