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.

A267978 Number of 4Xn 0..3 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.

Table of values

n a(n)
1 222
2 49284
3 10941048
4 2208460532
5 422888259007
6 77239556027716
7 13568675256814069
8 2305686585583566677
9 380719989364128125411
10 61309427889879303297626
11 9657019976002416918553516

List of values

[222, 49284, 10941048, 2208460532, 422888259007, 77239556027716, 13568675256814069, 2305686585583566677, 380719989364128125411, 61309427889879303297626, 9657019976002416918553516]

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

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