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.

A220383 Majority value maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 nX5 array.

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%I A220383 #6 Jul 23 2025 01:06:31
%S A220383 12,278,5114,96772,1829169,34521416,651568437,12297040231,
%T A220383 232084431547,4380156648582,82667261274110,1560189486600826,
%U A220383 29445650681573390,555731427515570889,10488388353407095343,197948657733286598661
%N A220383 Majority value maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 nX5 array.
%C A220383 Column 5 of A220386
%H A220383 R. H. Hardin, <a href="/A220383/b220383.txt">Table of n, a(n) for n = 1..106</a>
%e A220383 Some solutions for n=3
%e A220383 ..1..1..0..0..1....1..1..0..0..1....1..0..1..1..0....0..1..1..1..1
%e A220383 ..1..0..0..0..1....1..0..0..1..1....1..1..1..1..0....1..1..0..1..1
%e A220383 ..0..0..1..1..1....1..1..1..0..0....1..0..1..1..1....0..0..0..1..1
%K A220383 nonn
%O A220383 1,1
%A A220383 _R. H. Hardin_ Dec 13 2012