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.

A187423 Number of (n+1)X6 0..2 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants.

Table of values

n a(n)
1 15055
2 319792
3 5254072
4 139898890
5 2868461180
6 72355701549

List of values

[15055, 319792, 5254072, 139898890, 2868461180, 72355701549]

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

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