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.

A187422 Number of (n+1)X5 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 3593
2 44512
3 602024
4 10014852
5 139898890
6 2183222530
7 33876667824
8 532183243177
9 8196134675647
10 127027583294006
11 1971647634788057
12 30657997754787486
13 475925414500334404
14 7389192788201124449

List of values

[3593, 44512, 602024, 10014852, 139898890, 2183222530, 33876667824, 532183243177, 8196134675647, 127027583294006, 1971647634788057, 30657997754787486, 475925414500334404, 7389192788201124449]

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

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