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A250978 Number of (n+1)X(4+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the absolute difference of its antidiagonal elements 1

%I #4 Nov 29 2014 07:46:23

%S 35381,5598430,883387252,139471732486,22020178055066,3476591604928509,

%T 548891857207523016,86660272180224040474,13682117100301993675816,

%U 2160163148259481022075648,341051373664998454076089538

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

%C Column 4 of A250982

%H R. H. Hardin, <a href="/A250978/b250978.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A250978/a250978.txt">Empirical recurrence of order 97</a>

%F Empirical recurrence of order 97 (see link above)

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 29 2014

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)