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.

A220157 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array.

Table of values

n a(n)
1 21
2 95
3 727
4 5410
5 34959
6 214767
7 1272216
8 7244186
9 39698797
10 209815077
11 1070798249
12 5281686410
13 25200974573
14 116438844036

List of values

[21, 95, 727, 5410, 34959, 214767, 1272216, 7244186, 39698797, 209815077, 1070798249, 5281686410, 25200974573, 116438844036]

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

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