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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.

A219593 Number of nX6 arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX6 array.

Table of values

n a(n)
1 21
2 81
3 1188
4 14793
5 156964
6 1767430
7 21435360
8 259297241
9 2992271478
10 32522357305
11 335372829196
12 3312669542090
13 31487964667940
14 288434629481468
15 2549339374347045
16 21786411636714179
17 180452978644995861

List of values

[21, 81, 1188, 14793, 156964, 1767430, 21435360, 259297241, 2992271478, 32522357305, 335372829196, 3312669542090, 31487964667940, 288434629481468, 2549339374347045, 21786411636714179, 180452978644995861]

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

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