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A254493 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1

%I #4 Jan 31 2015 10:08:06

%S 19456,281024,3912576,51322752,656964096,8552031360,111699091200,

%T 1451408273792,18855945794560,244993609733760,3183443990624512,

%U 41382824034966400,538020003594157568,6993611458624561280

%N Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

%C Row 3 of A254491

%H R. H. Hardin, <a href="/A254493/b254493.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A254493/a254493.txt">Empirical recurrence of order 70</a>

%F Empirical recurrence of order 70 (see link above)

%e Some solutions for n=1

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 31 2015

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)