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.

A185563 1/4 the number of n X 5 0..3 arrays with no element equal both to the element above and to the element to its left.

Table of values

n a(n)
1 256
2 202500
3 159749820
4 126017211780
5 99407416968000
6 78416544382742160
7 61858104930689319360
8 48796145962555619907720
9 38492350573406180494467240
10 30364304873646611423433030660
11 23952577505016018447231455650500

List of values

[256, 202500, 159749820, 126017211780, 99407416968000, 78416544382742160, 61858104930689319360, 48796145962555619907720, 38492350573406180494467240, 30364304873646611423433030660, 23952577505016018447231455650500]

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

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