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A251040 Number of (3+1)X(n+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction 1

%I #4 Nov 29 2014 17:32:03

%S 3550,45150,422538,3433899,24844850,165531421,1034381160,6148260175,

%T 35111881064,194099698524,1044559279312,5496321654142,28374757599514,

%U 144110355157973,721631870905078,3569209613096896,17462525175317094

%N Number of (3+1)X(n+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction

%C Row 3 of A251037

%H R. H. Hardin, <a href="/A251040/b251040.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251040/a251040.txt">Empirical recurrence of order 60</a>

%F Empirical recurrence of order 60 (see link above)

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 29 2014

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Last modified February 25 19:44 EST 2024. Contains 370332 sequences. (Running on oeis4.)