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.

A205759 Number of 8X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 383440
2 3602578
3 29561841
4 341919297
5 3496020388
6 45262306396
7 528507252157
8 7409837678586
9 95546688005488
10 1427488689168257

List of values

[383440, 3602578, 29561841, 341919297, 3496020388, 45262306396, 528507252157, 7409837678586, 95546688005488, 1427488689168257]

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

Content is available under The OEIS End-User License Agreement.