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A251487 Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements 1

%I #4 Dec 03 2014 10:05:11

%S 740096,541815424,396684056960,290403118046224,212595602301764864,

%T 155634922739125247648,113935706529820385852096,

%U 83408950603225147662340176,61061218725064232993811630272

%N Number of (n+1)X(4+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements

%C Column 4 of A251491

%H R. H. Hardin, <a href="/A251487/b251487.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251487/a251487.txt">Empirical recurrence of order 48</a>

%F Empirical recurrence of order 48 (see link above)

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2014

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Last modified February 26 02:39 EST 2024. Contains 370335 sequences. (Running on oeis4.)