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.

A183307 Half the number of nX6 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.

Table of values

n a(n)
1 5
2 14
3 93
4 572
5 4212
6 29400
7 206755
8 1447110
9 10149621
10 71244598
11 500184679
12 3512112015
13 24658885220
14 173129289198
15 1215525172167
16 8534122345666
17 59917715208287
18 420680331462689
19 2953583636803146
20 20737016295243029

List of values

[5, 14, 93, 572, 4212, 29400, 206755, 1447110, 10149621, 71244598, 500184679, 3512112015, 24658885220, 173129289198, 1215525172167, 8534122345666, 59917715208287, 420680331462689, 2953583636803146, 20737016295243029]

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

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