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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.

A219475 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 5Xn array.

Table of values

n a(n)
1 56
2 619
3 32229
4 1306891
5 43792361
6 1222433026
7 29873644925
8 662533943916
9 13515253913829
10 257247067131996
11 4617731855899377
12 78635760906475856
13 1275140440612833310

List of values

[56, 619, 32229, 1306891, 43792361, 1222433026, 29873644925, 662533943916, 13515253913829, 257247067131996, 4617731855899377, 78635760906475856, 1275140440612833310]

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

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