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.

A208429 Number of nX3 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).

Table of values

n a(n)
1 5
2 54
3 129
4 339
5 1123
6 4155
7 15273
8 55715
9 205199
10 758647
11 2804053
12 10360467
13 38311103
14 141717367
15 524247989
16 1939302323
17 7174276855
18 26541315667
19 98190495765
20 363259275051
21 1343896481903
22 4971825005443
23 18393576694105

List of values

[5, 54, 129, 339, 1123, 4155, 15273, 55715, 205199, 758647, 2804053, 10360467, 38311103, 141717367, 524247989, 1939302323, 7174276855, 26541315667, 98190495765, 363259275051, 1343896481903, 4971825005443, 18393576694105]

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

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