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.

A219417 Unchanging value maps: number of n X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 n X n array.

Table of values

n a(n)
1 1
2 7
3 93
4 3617
5 372560
6 104434119
7 80311501599
8 170240798669115
9 992546861505827096
10 15854777538297903063593

List of values

[1, 7, 93, 3617, 372560, 104434119, 80311501599, 170240798669115, 992546861505827096, 15854777538297903063593]

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

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