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A240361 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4 1

%I #5 Aug 11 2014 22:46:11

%S 16,188,1693,13846,99412,663122,4069449,23273667,125118158,638885869,

%T 3112031883,14542135543,65459603510,284932363144,1202883300068,

%U 4937067745039,19738795196797,76995496434084,293404872610496

%N Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4

%C Column 4 of A240364

%H R. H. Hardin, <a href="/A240361/b240361.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A240361/a240361.txt">Empirical polynomial of degree 80</a>

%F Empirical polynomial of degree 80 (see link above)

%e Some solutions for n=4

%e ..3..1..0..0....3..3..0..1....0..3..1..3....0..0..3..1....0..3..3..1

%e ..0..2..0..0....3..3..0..1....3..3..2..0....0..3..3..2....0..0..3..2

%e ..3..3..0..0....3..3..1..2....0..3..3..2....3..3..2..3....0..0..3..2

%e ..3..2..0..1....0..2..2..3....3..1..3..2....3..3..0..1....3..3..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 04 2014

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Last modified July 21 04:02 EDT 2024. Contains 374463 sequences. (Running on oeis4.)