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.

A232297 Number of 3Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally.

Table of values

n a(n)
1 1
2 73
3 1313
4 20563
5 336079
6 5546705
7 91293443
8 1501960031
9 24713799985
10 406656992827
11 6691352475451
12 110103034876825
13 1811693873275549
14 29810574840844381
15 490519050740934291
16 8071261298331724901

List of values

[1, 73, 1313, 20563, 336079, 5546705, 91293443, 1501960031, 24713799985, 406656992827, 6691352475451, 110103034876825, 1811693873275549, 29810574840844381, 490519050740934291, 8071261298331724901]

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

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