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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.

A234753 Number of (n+1) X (1+1) 0..3 arrays with 2 X 2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both.

Table of values

n a(n)
1 110
2 1014
3 8968
4 80010
5 712722
6 6350732
7 56585338
8 504183278
9 4492335124
10 40027273406
11 356648038986
12 3177778909824
13 28314409931414
14 252284955262302
15 2247890695972232
16 20028988949649010
17 178460811756944538

List of values

[110, 1014, 8968, 80010, 712722, 6350732, 56585338, 504183278, 4492335124, 40027273406, 356648038986, 3177778909824, 28314409931414, 252284955262302, 2247890695972232, 20028988949649010, 178460811756944538]

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

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