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.

A197314 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 for x=0,1,2,3,4.

Table of values

n a(n)
1 2
2 9
3 128
4 152
5 1033
6 4780
7 24903
8 113774
9 553807
10 2751427
11 13385323
12 64601708
13 318081207
14 1550881210
15 7598781154
16 37018138503
17 181198882339
18 884596380240
19 4326961466564
20 21126289404408
21 103287098681855
22 504482396779592

List of values

[2, 9, 128, 152, 1033, 4780, 24903, 113774, 553807, 2751427, 13385323, 64601708, 318081207, 1550881210, 7598781154, 37018138503, 181198882339, 884596380240, 4326961466564, 21126289404408, 103287098681855, 504482396779592]

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

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