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.

A220763 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..3 3Xn array.

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%I A220763 #6 Jul 23 2025 01:27:32
%S A220763 64,192,4328,24934,354706,2715804,31659166,277952034,2954256382,
%T A220763 27594850862,281218334508,2702246506854,27016733242156,
%U A220763 262977482298808,2606430063309362,25520149513177148,251935677082462500
%N A220763 Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..3 3Xn array.
%C A220763 Row 3 of A220761
%H A220763 R. H. Hardin, <a href="/A220763/b220763.txt">Table of n, a(n) for n = 1..65</a>
%e A220763 Some solutions for n=3
%e A220763 ..3..0..2....2..0..1....1..1..1....0..0..2....1..1..2....1..1..1....1..1..3
%e A220763 ..2..0..0....2..0..0....2..0..3....1..0..3....2..0..1....3..1..1....1..1..3
%e A220763 ..2..0..1....3..0..3....0..0..1....0..0..2....3..0..0....1..1..2....1..1..2
%K A220763 nonn
%O A220763 1,1
%A A220763 _R. H. Hardin_ Dec 19 2012