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.

A269078 Number of 4 X n binary 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 16
2 89
3 537
4 3288
5 17713
6 102545
7 542112
8 2991561
9 15699273
10 84015848
11 437869217
12 2298582593
13 11896438960
14 61665786297
15 317089210745
16 1629210973432
17 8329629544721
18 42518834195697
19 216316340106688
20 1098583548812969

List of values

[16, 89, 537, 3288, 17713, 102545, 542112, 2991561, 15699273, 84015848, 437869217, 2298582593, 11896438960, 61665786297, 317089210745, 1629210973432, 8329629544721, 42518834195697, 216316340106688, 1098583548812969]

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

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