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.

A222911 Number of 6Xn 0..3 arrays with no more than floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

n a(n)
1 187
2 2522
3 119393
4 4320431
5 213112150
6 10615237672
7 577820456398
8 33236182725503
9 2041367121617874
10 132252751824700275

List of values

[187, 2522, 119393, 4320431, 213112150, 10615237672, 577820456398, 33236182725503, 2041367121617874, 132252751824700275]

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

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