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.

A181246 Number of n X 3 binary matrices with no 2 X 2 block having four 1's.

Table of values

n a(n)
1 8
2 57
3 417
4 3032
5 22077
6 160697
7 1169792
8 8515337
9 61986457
10 451223152
11 3284626797
12 23910060017
13 174050512312
14 1266980540057
15 9222838063377
16 67136581219272
17 488712965249117
18 3557529413370537
19 25896623226618032

List of values

[8, 57, 417, 3032, 22077, 160697, 1169792, 8515337, 61986457, 451223152, 3284626797, 23910060017, 174050512312, 1266980540057, 9222838063377, 67136581219272, 488712965249117, 3557529413370537, 25896623226618032]

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

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