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.

A269142 Number of nX7 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three no more than once.

Table of values

n a(n)
1 8748
2 2727564
3 732561916
4 186315931804
5 45920055321732
6 11067174233536260
7 2621894498331024092
8 612729907775635265268
9 141617828339474744759764
10 32434464000726413874379876
11 7371987566769862222037312812

List of values

[8748, 2727564, 732561916, 186315931804, 45920055321732, 11067174233536260, 2621894498331024092, 612729907775635265268, 141617828339474744759764, 32434464000726413874379876, 7371987566769862222037312812]

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

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