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.

A232340 Number of 6Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal.

Table of values

n a(n)
1 1
2 288
3 5338
4 16338
5 312276
6 1047700
7 20052758
8 71916112
9 1303776080
10 4965633966
11 85069249698
12 342465661280
13 5558842468148
14 23543239967730
15 363597929464136
16 1613453348902866
17 23803367852101370
18 110263048814908764

List of values

[1, 288, 5338, 16338, 312276, 1047700, 20052758, 71916112, 1303776080, 4965633966, 85069249698, 342465661280, 5558842468148, 23543239967730, 363597929464136, 1613453348902866, 23803367852101370, 110263048814908764]

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

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