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.

A220327 Equals two maps: number of nX6 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 nX6 array.

Table of values

n a(n)
1 12
2 658
3 29467
4 1335202
5 59893608
6 2680626797
7 119808040854
8 5350328821481

List of values

[12, 658, 29467, 1335202, 59893608, 2680626797, 119808040854, 5350328821481]

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

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