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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.

A218423 Hilltop maps: number of nX5 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, vertical or antidiagonal neighbor in a random 0..1 nX5 array.

Table of values

n a(n)
1 17
2 737
3 20793
4 629659
5 19003811
6 572765605
7 17270172871
8 520703946625
9 15699497444771
10 473348740584743
11 14271727157207365
12 430300515162577777
13 12973799949967137925
14 391167286570698841921
15 11793911323529489973393

List of values

[17, 737, 20793, 629659, 19003811, 572765605, 17270172871, 520703946625, 15699497444771, 473348740584743, 14271727157207365, 430300515162577777, 12973799949967137925, 391167286570698841921, 11793911323529489973393]

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

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