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.

A269082 Number of n X n binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 2
2 11
3 114
4 2238
5 80422
6 5372270
7 673690710
8 159449028034
9 71709929917104
10 61507638902069052
11 100988524469068110876
12 318195132133780181426070
13 1928131640777904103958251102
14 22507425106868892327680953474828

List of values

[2, 11, 114, 2238, 80422, 5372270, 673690710, 159449028034, 71709929917104, 61507638902069052, 100988524469068110876, 318195132133780181426070, 1928131640777904103958251102, 22507425106868892327680953474828]

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

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