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.

A219684 Number of nX6 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 nX6 array.

Table of values

n a(n)
1 21
2 32
3 452
4 5031
5 44736
6 344926
7 2706117
8 22404783
9 187497531
10 1518906665
11 11728070120
12 86620862097
13 616844079105
14 4256996307319
15 28523072830335
16 185674613829792
17 1175484129892778
18 7248518396992789
19 43607030016608124

List of values

[21, 32, 452, 5031, 44736, 344926, 2706117, 22404783, 187497531, 1518906665, 11728070120, 86620862097, 616844079105, 4256996307319, 28523072830335, 185674613829792, 1175484129892778, 7248518396992789, 43607030016608124]

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

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