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.

A275564 Number of nX7 0..2 arrays with no element equal to any value at offset (-2,0) (-1,2) or (0,-2) and new values introduced in order 0..2.

Table of values

n a(n)
1 48
2 2592
3 3552
4 23712
5 138600
6 867456
7 5360184
8 33275880
9 206892990
10 1286374716
11 7998368250
12 49754459556
13 309431155980
14 1924683955344
15 11971565665080
16 74462297454048
17 463161757751784
18 2880875453047152
19 17919172630925406

List of values

[48, 2592, 3552, 23712, 138600, 867456, 5360184, 33275880, 206892990, 1286374716, 7998368250, 49754459556, 309431155980, 1924683955344, 11971565665080, 74462297454048, 463161757751784, 2880875453047152, 17919172630925406]

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

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