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.

A269046 Number of n X n 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 3
2 42
3 594
4 24192
5 1643376
6 242861616
7 71430596250
8 43961616939276
9 56121206116838532
10 149312689805356303800
11 836315757545942679945480
12 9777884421682321788379713444
13 242268002268280142077867206348378

List of values

[3, 42, 594, 24192, 1643376, 242861616, 71430596250, 43961616939276, 56121206116838532, 149312689805356303800, 836315757545942679945480, 9777884421682321788379713444, 242268002268280142077867206348378]

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

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