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.

A180767 Half the number of nX7 binary arrays with each element equal to at least one neighbor.

Table of values

n a(n)
1 8
2 1172
3 89602
4 7053923
5 561487456
6 44560487654
7 3538520414645
8 280971809714842
9 22310318523546774
10 1771532822371947357
11 140667082973087038600
12 11169552997132511054788
13 886909077729036810872471

List of values

[8, 1172, 89602, 7053923, 561487456, 44560487654, 3538520414645, 280971809714842, 22310318523546774, 1771532822371947357, 140667082973087038600, 11169552997132511054788, 886909077729036810872471]

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

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