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.

A209015 Number of nX4 0..3 arrays with no element equal the average of immediate neighbors vertically above, diagonally above and left, and horizontally left of it.

Table of values

n a(n)
1 108
2 15724
3 2303052
4 337083370
5 49349902246
6 7224768704460
7 1057701934285612
8 154846841369187254
9 22669475693064075854
10 3318796151990660980412
11 485869556318230056701646
12 71130980457981221221106644

List of values

[108, 15724, 2303052, 337083370, 49349902246, 7224768704460, 1057701934285612, 154846841369187254, 22669475693064075854, 3318796151990660980412, 485869556318230056701646, 71130980457981221221106644]

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

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