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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.

A234755 Number of (n+1)X(3+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 8968
2 646036
3 41065150
4 2683721676
5 174451064914
6 11352560005654
7 738613242438722
8 48057390396250352
9 3126794045459927262
10 203441328354140321486
11 13236675571733137508104
12 861229107849713487636906

List of values

[8968, 646036, 41065150, 2683721676, 174451064914, 11352560005654, 738613242438722, 48057390396250352, 3126794045459927262, 203441328354140321486, 13236675571733137508104, 861229107849713487636906]

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

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