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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.

A234754 Number of (n+1)X(2+1) 0..3 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.

Table of values

n a(n)
1 1014
2 26642
3 646036
4 15939010
5 392044622
6 9648827736
7 237446135146
8 5843394219306
9 143801532689336
10 3538850266550630
11 87088497253969902
12 2143183802626938104
13 52742175287648016058
14 1297946099417129620238

List of values

[1014, 26642, 646036, 15939010, 392044622, 9648827736, 237446135146, 5843394219306, 143801532689336, 3538850266550630, 87088497253969902, 2143183802626938104, 52742175287648016058, 1297946099417129620238]

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

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