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.

A228282 Number of nX7 binary arrays with top left value 1 and no two ones adjacent horizontally, vertically or nw-se diagonally.

Table of values

n a(n)
1 13
2 60
3 1034
4 10414
5 126119
6 1428523
7 16566199
8 190540884
9 2197847780
10 25325358687
11 291935092921
12 3364727410265
13 38782728207101
14 447011297075966
15 5152298718205939
16 59385855860517581
17 684486816741728022

List of values

[13, 60, 1034, 10414, 126119, 1428523, 16566199, 190540884, 2197847780, 25325358687, 291935092921, 3364727410265, 38782728207101, 447011297075966, 5152298718205939, 59385855860517581, 684486816741728022]

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

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