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.

A241115 Number of nX3 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order.

Table of values

n a(n)
1 5
2 178
3 9918
4 587555
5 35000157
6 2085879115
7 124315318217
8 7409032909403
9 441568937568818
10 26316947602316573
11 1568456640467509976
12 93478023005207665450
13 5571171404819117025366
14 332034737407500793137773

List of values

[5, 178, 9918, 587555, 35000157, 2085879115, 124315318217, 7409032909403, 441568937568818, 26316947602316573, 1568456640467509976, 93478023005207665450, 5571171404819117025366, 332034737407500793137773]

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

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