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.

A218586 Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or antidiagonal neighbor in a random 0..2 n X n array.

Table of values

n a(n)
1 1
2 13
3 449
4 56629
5 28543403
6 57707873919
7 467122877883141
8 15124271280844676313
9 1958173356335852318774549
10 1013875932726564267833657180687

List of values

[1, 13, 449, 56629, 28543403, 57707873919, 467122877883141, 15124271280844676313, 1958173356335852318774549, 1013875932726564267833657180687]

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

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