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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.

A219076 Hilltop maps: number of nX6 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..1 nX6 array.

Table of values

n a(n)
1 31
2 2435
3 134809
4 7561349
5 433704331
6 24734141495
7 1410242020653
8 80444813963129
9 4588436794733591
10 261712432286491659
11 14927540586501299193
12 851435525780779197693
13 48564066186463152044491
14 2769991245247350703909311

List of values

[31, 2435, 134809, 7561349, 433704331, 24734141495, 1410242020653, 80444813963129, 4588436794733591, 261712432286491659, 14927540586501299193, 851435525780779197693, 48564066186463152044491, 2769991245247350703909311]

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

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