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.

A219691 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.

Table of values

n a(n)
1 28
2 98
3 1506
4 18486
5 220182
6 2706117
7 35011623
8 461414270
9 5979059010
10 75005582670

List of values

[28, 98, 1506, 18486, 220182, 2706117, 35011623, 461414270, 5979059010, 75005582670]

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

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