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.

A218648 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..3 nX5 array.

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%I A218648 #6 Jul 23 2025 00:02:34
%S A218648 94,1280,44712,1374954,45453172,1519211492,50119569324,1664686049742,
%T A218648 55271550032162,1834389849757758,60908824469453990,
%U A218648 2022184882918753962,67138807540703516826,2229116172523577249680,74009789156374427379680
%N A218648 Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..3 nX5 array.
%C A218648 Column 5 of A218651
%H A218648 R. H. Hardin, <a href="/A218648/b218648.txt">Table of n, a(n) for n = 1..207</a>
%e A218648 Some solutions for n=3
%e A218648 ..1..1..1..1..2....2..2..1..1..0....0..0..0..1..1....1..1..1..1..1
%e A218648 ..1..1..1..2..3....2..2..1..0..0....0..0..3..0..0....1..1..0..0..3
%e A218648 ..3..2..2..3..3....2..1..1..0..0....1..2..0..0..0....1..0..0..0..3
%K A218648 nonn
%O A218648 1,1
%A A218648 _R. H. Hardin_ Nov 03 2012