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.

A268780 Number of n X 7 binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once.

Table of values

n a(n)
1 72
2 766
3 10615
4 115391
5 1288693
6 13493468
7 140404442
8 1425678976
9 14341399141
10 142487073304
11 1404716302427
12 13742060955231
13 133640514636584
14 1292631496259982
15 12446235637750465
16 119353876258739189

List of values

[72, 766, 10615, 115391, 1288693, 13493468, 140404442, 1425678976, 14341399141, 142487073304, 1404716302427, 13742060955231, 133640514636584, 1292631496259982, 12446235637750465, 119353876258739189]

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

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