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.

A269212 Number of nX6 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

Table of values

n a(n)
1 1620
2 360960
3 70371048
4 11985002256
5 1910809190712
6 292321215814512
7 43468685827935816
8 6331185189881558208
9 907653167033915932536
10 128509758210816109187040
11 18012346515317443065043752

List of values

[1620, 360960, 70371048, 11985002256, 1910809190712, 292321215814512, 43468685827935816, 6331185189881558208, 907653167033915932536, 128509758210816109187040, 18012346515317443065043752]

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

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